The quiz has two portions:
Multiple Choice
(8 problems, 32 points).
Show work/explanation as appropriate
.
Short Answer
(3 problems, 38 points)
Show work
.
MULTIPLE CHOICE
. Choose the one alternative that best completes the statement or answers the question.
(
4 points
) If the P-value of a hypothesis test comparing two means was 0.25, what can you conclude? (Select all that apply):
A. You can accept the null hypothesis
B. There was a significant difference between the means
C. You failed to reject the null hypothesis
D. There did not appear to be significant difference between the means
(
4 points
) Imagine a researcher wanted to test the effect of the new drug on reducing blood pressure. In this study, there were 50 participants. The researcher measured the participants’ blood pressure before and after the drug intake. If we want to compare the mean blood pressure from the two time periods with a two-tailed t test, how many degrees of freedom are there?
A. 49
B. 50
C. 99
D. 100
(
4 points
) When sample size increases, ____
A. Power increases a great degree at first, reaches its peak, and then slowly decreases
B. Power decreases a great degree at first, reaches its lowest point, and then slowly increases
C. Power increases a great degree at first, and then increases slowly
D. Power decreases a great degree at first, and then decreases slowly
(
4 points
) α=0.05 for a two-tailed test. Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis.
A. ±1.768
B. ±1.764
C. ±1.96
D. ±2.575
(
4 points
) In a sample of 47 adults selected randomly from one town, it is found that 9 of them have been exposed to a particular strain of the flu. Find the P-value for a test of the claim that the proportion of all adults in the town that have been exposed to this strain of the flu is 8%.
A. 0.0024
B. 0.0524
C. 0.0228
D. 0.0048
(
4 points
) For a simple random sample, the size is n=17, σ is not known, and the original population is normally distributed. Determine whether the give conditions justify testing a claim about a population mean µ.
A. Yes
B. No
(
4 points
) A medical researcher claims that 20% of children suffer from a certain disorder. Indentify the type I error for the test.
A. Fail to reject the claim that the percentage of children who suffer from the disorder is equal to 20% when the percentage is actually 20%.
B. Reject the claim that the percentage of children who suffer from the disorder is equal to 20% when that percentage is actually 20%.
C. Fail to reject the claim that the percentage of children who suffer from the disorder is equal to 20% when that percentage is actually different from 20%.
D.Reject the claim that the percentage of children who suffer from the disorder is different from 20% when that percentage really is different f.
Check your solutions from the practice. Please be sure you f.docxspoonerneddy
Check your solutions from the practice. Please be sure you fully understand all
solutions before taking your exam.
1 . a. The type of study is observational with the variable of interest being the
age of the student.
2 . (41.1, 50.9)
3. a. 36 movies
b . 29 movies
c. 23 movies
d. About 230 minutes
4. Part a: Median 139,500 Mean: 163,125
Part b: Outlier 34,000 Median: 140,000 Mean: 182, 000
Part c: outlier 434,000 Median: 139,000 Mean: 124,428.57
5 . a. The goal is to determine how many teachers would choose a different
career if given the opportunity
b . All US teachers
c. Percentage of teachers who would choose a different career
d. 2150 teachers who were questioned
e . Raw data is teacher responses (yes no) to question if they would choose a
different career.
f. 60% of teachers who said they would choose a different career
g. 55%---65%
6. Red: (0.85,0.97)
Yellow: (0.86, 0.98)
Blue: (0.86,0.94)
7 . F ro m st at di sk
Source: DF: SS: MS: Test Stat, F: Critical F: P---Value:
Treatment: 2 0.00224 0.00112 0.505269 6.112108 0.612123
Error: 17 0.03769 0.002217
Total: 19 0.03993
Fail to Reject the Null Hypothesis
There is not sufficient evidence to reject equality of means
The p value 0.61
We have sufficient evidence to claim the mean of all colors is the same.
8. Expected probability of rolling a 2: 0.16
Actual results: 0.44
Difference 0.28, this is statistically significant
9 . Null hypothesis: The mean of all three players are the same
Alternative hypothesis: the mean of at least one player is different
The p value is 0.036
At this level we must reject Ho and conclude at least one mean is statistically
different.
1 0 . The minimum sample size is 365 students
1 1 . a. 58%
b . 74%
c. 82%
d . 7 8
1 2 . H0: p=0.095
a. Ha: P<---.095
b . P hat= 0.0920
c. Z=---0.33
d. No
Test results from stat disk are as follows:
Claim: p < p(hyp)
Sample proportion: 0.0920304
Test Statistic, z: ---0.3288
Critical z: ---1.6449
P---Value: 0.3712
90% Confidence interval:
0.0773847 < p < 0.106676
Fail to Reject the Null Hypothesis
Sample does not provide enough evidence to support the claim
1 3 . a. 2 standard deviations
b . 97.72%
1 4. FROM STAT DISK:
Descriptive Statistics
Column 3
Sample Size, n: 15
Mean:8.2
Median: 8
Midrange: 8.5
RM S : 8.306624
Variance, s^2: 1.885714
St Dev, s:1.373213
Mean Abs Dev: 1.066667
Range: 5
Coeff. Of Var. 16.75%
Minimum: 6
1 st Quartile: 7
2 nd Quartile: 8
3 rd Quartile: 9
Maximum: 11
Sum: 123
Sum Sq: 1035
c. The best estimate for the mean is 8.2 people
d. The 95% confidence interval is (from stat disk)
Margin of error, E = 0.7586815
95% Confident the population mean is within the range:
7. 44 1 3 1 9 < mean <8.958681
No this is not representative of the entire nation
1 5 . Type I error: reject the fact that males and females are equal in GPA when
that is in fact true
Type II error--- Conclude the GPA of males .
Question 1 1. Assume that the data has a normal distribution .docxIRESH3
Question 1
1.
Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. = 0.09 for a right-tailed test.
Answer
±1.96
1.34
±1.34
1.96
5 points
Question 2
1.
Find the value of the test statistic z using z = The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n = 681 drowning deaths of children with 30% of them attributable to beaches.
Answer
3.01
2.85
-2.85
-3.01
5 points
Question 3
1.
Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). The test statistic in a left-tailed test is z = -1.83.
Answer
0.0672; reject the null hypothesis
0.0336; reject the null hypothesis
0.9664; fail to reject the null hypothesis
0.0672; fail to reject the null hypothesis
5 points
Question 4
1.
Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). With H1: p < 3/5, the test statistic is z = -1.68.
Answer
0.093; fail to reject the null hypothesis
0.0465; fail to reject the null hypothesis
0.0465; reject the null hypothesis
0.9535; fail to reject the null hypothesis
5 points
Question 5
1.
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. The owner of a football team claims that the average attendance at games is over 694, and he is therefore justified in moving the team to a city with a larger stadium. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.
Answer
There is not sufficient evidence to support the claim that the mean attendance is less than 694.
There is sufficient evidence to support the claim that the mean attendance is greater than 694.
There is sufficient evidence to support the claim that the mean attendance is less than 694.
There is not sufficient evidence to support the claim that the mean attendance is greater than 694.
5 points
Question 6
1.
Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test. A consumer advocacy group claims that the mean mileage for the Carter Motor Company's new sedan is less than 32 miles per gallon. Identify the type I error for the test.
Answer
Fail to reject the claim that the mean is equal to 32 miles per gallon when it is actually greater than 32 miles per gallon.
Reject the claim that the mean is equal to 32 miles per gallon when it is actually less than 32 miles per gallon.
Reject the claim that the mean is equal to 32 miles per ...
Part 1 of 16 - Question 1 of 231.0 PointsThe data pres.docxherbertwilson5999
Part 1 of 16 -
Question 1 of 23
1.0 Points
The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type?
Seed Type
Observed Frequencies
Germinated
Failed to Germinate
1
31
7
2
57
33
3
87
60
4
52
44
5
10
19
A.Yes, because the test value 16.86 is greater than the critical value of 13.28
B.Yes, because the test value 16.86 is less than the critical value of 14.86
C.No, because the test value 16.86 is greater than the critical value of 13.28
D.No, because the test value 13.28 is less than the critical value of 16.86
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Question 2 of 23
1.0 Points
The chi-square goodness-of-fit test can be used to test for:
A.significance of sample statistics
B.normality
C.difference between population variances
D.difference between population means
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Part 2 of 16 -
Question 3 of 23
1.0 Points
The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. For a random sample of 12 similar stores, she gathered the following information regarding the shelf space, in feet, devoted to pet food and the weekly sales in hundreds of dollars.
Store
1
2
3
4
5
6
Shelf Space
5
5
5
10
10
10
Weekly Sales
1.6
2.2
1.4
1.9
2.4
2.6
Store
7
8
9
10
11
12
Shelf Space
15
15
15
20
20
20
Weekly Sales
2.3
2.7
2.8
2.6
2.9
3.1
What is the estimated regression equation?
A. = 1.45 + 0.074x
B. = 2.63 - 0.174x
C. = 2.63 + 0.724x
D. = 1.45 + 0.724x
Reset Selection
Question 4 of 23
1.0 Points
A single variable X can explain a large percentage of the variation in some other variable Y when the two variables are:
A.highly correlated
B.directly related
C.inversely related
D.mutually exclusive
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Question 5 of 23
1.0 Points
Data for a sample of 25 apartments in a particular neighborhood are provided in the worksheet Apartments in the Excel workbook Apartments.xlsx. Using that data, find the estimated regression equation which can be used to estimate the monthly rent for apartments in this neighborhood using size as the predictor variable.
Apartments.xlsx
A. 177.12 + 1.065(size)
B.177.12 + 0.8500(size)
C.1.065 + 177.12(size)
D.197.12 + 2.065(size)
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Part 3 of 16 -
Question 6 of 23
1.0 Points
A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to determine whether there is a difference between the effectiveness for women and for men. Assume α = 0.05. What is the test value?
Women
Men
Sample size
50
80
Mean effect
7
6.95
Sample variance
3
4
A.t = 3.252
B.t = 0.151
C.z = 0.081
D.z = 0.455
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Question 7 of 23
.
Approximately 20 of 1000 fish in a pond are affected with a skin .docxrossskuddershamus
Approximately 20% of 1000 fish in a pond are affected with a skin disease. A random sample of 20 fish are selected. What is the mean of the sampling distribution for the proportion of your sample that is infected? What is the standard deviation of the sampling distribution for the proportion of your sample that is infected?
Chapter 4, Section 3, Exercise 075
Match the p-values with the appropriate conclusion:
(a) The evidence against the null hypothesis is significant, but only at the 10% level.
(b) The evidence against the null and in favor of the alternative is very strong.
(c) There is not enough evidence to reject the null hypothesis, even at the 10% level.
(d) The result is significant at a 5% level but not at a 1% level.
Chapter 4, Section 3, Exercise 082
Sleep or Caffeine for Memory?
The consumption of caffeine to benefit alertness is a common activity practiced by 90% of adults in North America. Often caffeine is used in order to replace the need for sleep. One recent study1 compares students' ability to recall memorized information after either the consumption of caffeine or a brief sleep. A random sample of 35 adults (between the ages of 18-39 ) were randomly divided into three groups and verbally given a list of 24 words to memorize. During a break, one of the groups takes a nap for an hour and a half, another group is kept awake and then given a caffeine pill an hour prior to testing, and the third group is given a placebo. The response variable of interest is the number of words participants are able to recall following the break. The summary statistics for the three groups are in the table below. We are interested in testing whether there is evidence of a difference in average recall ability between any two of the treatments. Thus we have three possible tests between different pairs of groups: Sleep vs Caffeine, Sleep vs Placebo, and Caffeine vs Placebo.
Group
Sample size
Mean
Standard Deviation
Sleep
12
15.25
3.3
Caffeine
12
12.25
3.5
Placebo
11
13.70
3.0
1 Mednick, Cai, Kanady, and Drummond, "Comparing the benefits of caffeine, naps and placebo on verbal, motor and perceptual memory", Behavioural Brain Research, 193 (2008), 79-86.
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(a) In the test comparing the sleep group to the caffeine group, the p-value is 0.003.
What is the conclusion of the test?
H0.
In the sample , which group had better recall ability?
According to the test results, do you think sleep is really better than caffeine for recall ability?
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(b) In the test comparing the sleep group to the placebo group, the p-value is 0.06.
What is the conclusion of the test, using a 5% significance level?
H0.
What is the conclusion of the test, if we use a 10% significance level?
H0.
How strong is the evidence of a difference in mean recall ability between these two treatments?
Warn.
Week 2 Assignment1. A. What is the probability of rolling a four.docxmelbruce90096
Week 2 Assignment
1. A. What is the probability of rolling a four in the gambling dice game of craps (given two six sided dice)?
B. What is the probability that a player can roll a four 3 times in a row (assume that rolling the dice each time does not affect the outcome of the next roll)?
2. Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. A random sample of 30 people is picked from population A, and random sample of 50 people is selected from Population B. Which sample mean will probably yield a more accurate estimate of its population mean? Why?
3.
Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. The mean vein size is found to be 7.8mm with an SD of 2.1. Using a t distribution table, what are the confidence limits for a 95% confidence interval? For a 99% confidence interval?
4.
In a pilot study evaluating the use of a new drug to lower resting heart rates (HR) of patients, the following data was recorded:
Subject #
Resting HR
001
72
002
88
003
71
004
87
005
64
006
77
007
79
008
59
009
66
010
68
011
78
012
89
013
91
014
81
015
77
016
75
017
69
Given that the average resting HR of the general population for this study is 72, use StatCrunch to perform the appropriate t test. What is the value of t? Using an alpha of 0.05, is the t statistic significant? Why? What are the confidence limits for a 95% confidence interval here and what do they mean for this patient group? Copy and Paste your work from StatCrunch into your Word document submission.
5.
Write one or two sentences that could be used to report the results obtained for the t-test in Exercise 4.
6.
For which of the following situations is the independent groups t-test appropriate (if inappropriate, why?):
a.
The independent variable is infant birth weight at one week (normal vs high); the dependent variable is resting heart rate.
b.
The independent variable is radiation treatment on throat cancer patients (after a low dose and then a high dose treatment); the dependent variable is white blood cell count.
c.
The IV is infant birth weight (low vs normal birth weight); the DV is number of days absent from school in first grade.
d.
The IV is gender (male vs female); the DV is compliance vs noncompliance with a medication regimen.
e.
The independent variable is married status (single vs divorced vs married); the dependent variable is happiness measured on a scale from 1 to 50
7.
For which of the following situations is the dependent groups t-test appropriate (if not appropriate, why?)
a.
The IV is presence or absence of conversation directed to comatose patients (same patients with and without conversation); the DV is the patients’ intracranial pressure.
b.
The IV is birth type (home vs hospital); the DV is perceived functional ability of the patient 48 hours after surgery.
c.
The IV is time since incarceration (1 months vs 3 months vs 6 months); the DV is body .
1Suppose that the average song length in America is 4 minutes wit.docxeugeniadean34240
1 Suppose that the average song length in America is 4 minutes with a standard deviation of 1.25 minutes. It is known that song length is not normally distributed. Find the probability that a single randomly selected song from the population will be longer than 4.25 minutes. Round to the nearest thousandth.
Answer
A. 0.579
B. 0.079
C. 0.421
D. This probability cannot be determined because we do not know the distribution of the population.
2 An outcome of an experiment or study that is large enough to have a real effect on people’s health or lifestyle is said to have clinical significance.
Answer
True
False
3 Are average SAT scores higher in schools where a smaller percentage of graduating students take the test? To answer this question 10 schools are sampled and the average SAT and percentage of students taking the test were recorded. 2002 SAT results of regional high schools were sampled and the data is given below. Use that data to test if there is a relation between the proportion of seniors that take the test and the average SAT scores. At 95% confidence level.
2002 SAT results of a sample of Western North Carolina High Schools.
Mean SAT scores
1106
1040
1013
1066
1061
1075
1058
997
1014
965
Percent tested
61
59
44
54
72
74
80
32
49
What is R2 for the equation?
A. R2=0.793
B.B. R2= 0.429
C. C. R2=0.326
D. D. R2=0.357
4. Suppose the Acme Drug Company develops a new drug, designed to prevent colds. The company states that the drug is equally effective for men and women. To test this claim, they choose a simple random sample of 100 women and 200 men from a population of 100,000 volunteers. At the end of the study, 38% of the women caught a cold; and 51% of the men caught a cold. State the null and alternative hypothesis:
Answer
A. H0: p1 = p2 : HA: p1 = p2 :
B. H0: p1 < p2 HA: p1< p2 :
C. H0: p1 > p2 HA: p1> p2 :
D. H0: p1 ≠ p2 HA: p1= p2 :
5 An insurance company is reviewing its current policy rates. When originally setting the rates they believed that the average claim amount was $1,800. They are concerned that the true mean is actually higher than this, because they could potentially lose a lot of money. They randomly select 40 claims, and calculate a sample mean of $1,950. Assuming that the standard deviation of claims is $500, and set α = 0.05, test to see if the insurance company should be concerned. What do we interpret from the problem?
Answer
A. P value < α so we reject Ho
B. P value > α so we do not reject Ho
C. P value < α so we do not reject Ho
D. P value < α so we reject Ho
6 1. To achieve a significance level of α, if the p-value is less than (or equal to) α, then________________
Answer
A. accept the null hypothesis
B. do not reject the null hypothesis
C. reject the null hypothesis
D. accept the alternative hypothesis
7 1. Neuroscience researchers examined the impact of environment on rat development. Rats were.
14 + 8 Answers and calculations as basic statistics student would ex.docxjeanettehully
14 + 8 Answers and calculations as basic statistics student would explain put into both an MS Excel spreadsheet and copied into MS Word doc format. Due by 7pm 2/2/14.
Week 2 Assignment
A. What is the probability of rolling a four in the gambling dice game of craps (given two six sided dice)?
B. What is the probability that a player can roll a four 3 times in a row (assume that rolling the dice each time does not affect the outcome of the next roll)?
Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. A random sample of 30 people is picked from population A, and random sample of 50 people is selected from Population B. Which sample mean will probably yield a more accurate estimate of its population mean? Why?
3. Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. The mean vein size is found to be 7.8mm with an SD of 2.1. Using a
t
distribution table, what are the confidence limits for a 95% confidence interval? For a 99% confidence interval?
4. In a pilot study evaluating the use of a new drug to lower resting heart rates (HR) of patients, the following data was recorded:
Subject #
Resting HR
001
72
002
88
003
71
004
87
005
64
006
77
007
79
008
59
009
66
010
68
011
78
012
89
013
91
014
81
015
77
016
75
017
69
Given that the average resting HR of the general population for this study is 72, use StatCrunch to perform the appropriate
t
test. What is the value of
t
? Using an alpha of 0.05, is the
t
statistic significant? Why? What are the confidence limits for a 95% confidence interval here and what do they mean for this patient group? Copy and Paste your work from StatCrunch into your Word document submission.
5. Write one or two sentences that could be used to report the results obtained for the t-test in Exercise 4.
6. For which of the following situations is the
independent
groups t-test appropriate (if inappropriate, why?):
a. The independent variable is infant birth weight at one week (normal vs high); the dependent variable is resting heart rate.
b. The independent variable is radiation treatment on throat cancer patients (after a low dose and then a high dose treatment); the dependent variable is white blood cell count.
c. The IV is infant birth weight (low vs normal birth weight); the DV is number of days absent from school in first grade.
d. The IV is gender (male vs female); the DV is compliance vs noncompliance with a medication regimen.
e. The independent variable is married status (single vs divorced vs married); the dependent variable is happiness measured on a scale from 1 to 50
7. For which of the following situations is the
dependent
groups t-test appropriate (if not appropriate, why?)
a. The IV is presence or absence of conversation directed to comato.
JKN 10 Inference 2 Populations.Consider the following set of d.docxchristiandean12115
JKN 10 Inference 2 Populations.
Consider the following set of data.
Pairs
1
2
3
4
5
Sample A
9
4
3
5
3
Sample B
3
8
2
7
1
(a) Find the paired differences, d = A - B, for this set of data.
(d1)
(d2)
(d3)
(d4)
(d5)
(b) Find the mean d of the paired differences. (Give your answer correct to one decimal place.)
(c) Find the standard deviation sd of the paired differences. (Give your answer correct to two decimal places.)
Salt-free diets are often prescribed to people with high blood pressure. The following data values were obtained from an experiment designed to estimate the reduction in diastolic blood pressure as a result of consuming a salt-free diet for 2 weeks. Eight subjects had their blood pressure measured and then ate a salt free diet for two weeks and had their blood pressure measured again. Assume diastolic readings to be normally distributed.
Before
99
105
93
102
100
108
107
97
After
92
102
91
94
96
98
100
93
(a) The proper TI-83 program to use to compute the confidence interval for the mean reduction in blood pressure is:
(b) Find the 98% confidence interval for the mean reduction. (Give your answers correct to two decimal places.)
Lower Limit
Upper Limit
(c) Which of the following statements is true about the confidence interval? (More than one may apply)
We are 98% confident that the true mean of the individual differences in blood pressure is in the intervalIf we took 100 samples and constructed 100 confidence intervals for the mean of the individual differences, approximately 98 of them would contain the true mean of the individual differencesWe are 98 % confident that the mean of the after data minus the mean of the before data is in the intervalWe are 98 % confident that the mean of the before data minus the mean of the after data is in the interval
An experiment was designed to estimate the mean difference in weight gain for pigs fed ration A as compared with those fed ration B. Eight pairs of pigs were used. The pigs within each pair were litter-mates. The rations were assigned at random to the two animals within each pair. The gains (in pounds) after 45 days are shown in the following table. Assuming weight gain is normal, find the 99% confidence interval estimate for the mean of the differences μd, where d = ration A - ration B. (Give your answers correct to two decimal places.)
Litter
1
2
3
4
5
6
7
8
Ration A
56
40
60
59
43
40
50
46
Ration B
54
30
50
56
37
36
42
40
Lower Limit
Upper Limit
State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test these claims.
(a) There is an increase in the mean difference between post-test and pretest scores.(d=post-test scores - pretest scores)
Ho: μd
0
Ha: μd
0
(b) Following a special training session, it is believed that the mean of the difference in performance scores will not be zero.
Ho: μd
0
Ha: μd
0
(c) On average, there is no difference between the readings from two inspectors on .
Check your solutions from the practice. Please be sure you f.docxspoonerneddy
Check your solutions from the practice. Please be sure you fully understand all
solutions before taking your exam.
1 . a. The type of study is observational with the variable of interest being the
age of the student.
2 . (41.1, 50.9)
3. a. 36 movies
b . 29 movies
c. 23 movies
d. About 230 minutes
4. Part a: Median 139,500 Mean: 163,125
Part b: Outlier 34,000 Median: 140,000 Mean: 182, 000
Part c: outlier 434,000 Median: 139,000 Mean: 124,428.57
5 . a. The goal is to determine how many teachers would choose a different
career if given the opportunity
b . All US teachers
c. Percentage of teachers who would choose a different career
d. 2150 teachers who were questioned
e . Raw data is teacher responses (yes no) to question if they would choose a
different career.
f. 60% of teachers who said they would choose a different career
g. 55%---65%
6. Red: (0.85,0.97)
Yellow: (0.86, 0.98)
Blue: (0.86,0.94)
7 . F ro m st at di sk
Source: DF: SS: MS: Test Stat, F: Critical F: P---Value:
Treatment: 2 0.00224 0.00112 0.505269 6.112108 0.612123
Error: 17 0.03769 0.002217
Total: 19 0.03993
Fail to Reject the Null Hypothesis
There is not sufficient evidence to reject equality of means
The p value 0.61
We have sufficient evidence to claim the mean of all colors is the same.
8. Expected probability of rolling a 2: 0.16
Actual results: 0.44
Difference 0.28, this is statistically significant
9 . Null hypothesis: The mean of all three players are the same
Alternative hypothesis: the mean of at least one player is different
The p value is 0.036
At this level we must reject Ho and conclude at least one mean is statistically
different.
1 0 . The minimum sample size is 365 students
1 1 . a. 58%
b . 74%
c. 82%
d . 7 8
1 2 . H0: p=0.095
a. Ha: P<---.095
b . P hat= 0.0920
c. Z=---0.33
d. No
Test results from stat disk are as follows:
Claim: p < p(hyp)
Sample proportion: 0.0920304
Test Statistic, z: ---0.3288
Critical z: ---1.6449
P---Value: 0.3712
90% Confidence interval:
0.0773847 < p < 0.106676
Fail to Reject the Null Hypothesis
Sample does not provide enough evidence to support the claim
1 3 . a. 2 standard deviations
b . 97.72%
1 4. FROM STAT DISK:
Descriptive Statistics
Column 3
Sample Size, n: 15
Mean:8.2
Median: 8
Midrange: 8.5
RM S : 8.306624
Variance, s^2: 1.885714
St Dev, s:1.373213
Mean Abs Dev: 1.066667
Range: 5
Coeff. Of Var. 16.75%
Minimum: 6
1 st Quartile: 7
2 nd Quartile: 8
3 rd Quartile: 9
Maximum: 11
Sum: 123
Sum Sq: 1035
c. The best estimate for the mean is 8.2 people
d. The 95% confidence interval is (from stat disk)
Margin of error, E = 0.7586815
95% Confident the population mean is within the range:
7. 44 1 3 1 9 < mean <8.958681
No this is not representative of the entire nation
1 5 . Type I error: reject the fact that males and females are equal in GPA when
that is in fact true
Type II error--- Conclude the GPA of males .
Question 1 1. Assume that the data has a normal distribution .docxIRESH3
Question 1
1.
Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. = 0.09 for a right-tailed test.
Answer
±1.96
1.34
±1.34
1.96
5 points
Question 2
1.
Find the value of the test statistic z using z = The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n = 681 drowning deaths of children with 30% of them attributable to beaches.
Answer
3.01
2.85
-2.85
-3.01
5 points
Question 3
1.
Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). The test statistic in a left-tailed test is z = -1.83.
Answer
0.0672; reject the null hypothesis
0.0336; reject the null hypothesis
0.9664; fail to reject the null hypothesis
0.0672; fail to reject the null hypothesis
5 points
Question 4
1.
Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). With H1: p < 3/5, the test statistic is z = -1.68.
Answer
0.093; fail to reject the null hypothesis
0.0465; fail to reject the null hypothesis
0.0465; reject the null hypothesis
0.9535; fail to reject the null hypothesis
5 points
Question 5
1.
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. The owner of a football team claims that the average attendance at games is over 694, and he is therefore justified in moving the team to a city with a larger stadium. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.
Answer
There is not sufficient evidence to support the claim that the mean attendance is less than 694.
There is sufficient evidence to support the claim that the mean attendance is greater than 694.
There is sufficient evidence to support the claim that the mean attendance is less than 694.
There is not sufficient evidence to support the claim that the mean attendance is greater than 694.
5 points
Question 6
1.
Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test. A consumer advocacy group claims that the mean mileage for the Carter Motor Company's new sedan is less than 32 miles per gallon. Identify the type I error for the test.
Answer
Fail to reject the claim that the mean is equal to 32 miles per gallon when it is actually greater than 32 miles per gallon.
Reject the claim that the mean is equal to 32 miles per gallon when it is actually less than 32 miles per gallon.
Reject the claim that the mean is equal to 32 miles per ...
Part 1 of 16 - Question 1 of 231.0 PointsThe data pres.docxherbertwilson5999
Part 1 of 16 -
Question 1 of 23
1.0 Points
The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type?
Seed Type
Observed Frequencies
Germinated
Failed to Germinate
1
31
7
2
57
33
3
87
60
4
52
44
5
10
19
A.Yes, because the test value 16.86 is greater than the critical value of 13.28
B.Yes, because the test value 16.86 is less than the critical value of 14.86
C.No, because the test value 16.86 is greater than the critical value of 13.28
D.No, because the test value 13.28 is less than the critical value of 16.86
Reset Selection
Question 2 of 23
1.0 Points
The chi-square goodness-of-fit test can be used to test for:
A.significance of sample statistics
B.normality
C.difference between population variances
D.difference between population means
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Part 2 of 16 -
Question 3 of 23
1.0 Points
The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. For a random sample of 12 similar stores, she gathered the following information regarding the shelf space, in feet, devoted to pet food and the weekly sales in hundreds of dollars.
Store
1
2
3
4
5
6
Shelf Space
5
5
5
10
10
10
Weekly Sales
1.6
2.2
1.4
1.9
2.4
2.6
Store
7
8
9
10
11
12
Shelf Space
15
15
15
20
20
20
Weekly Sales
2.3
2.7
2.8
2.6
2.9
3.1
What is the estimated regression equation?
A. = 1.45 + 0.074x
B. = 2.63 - 0.174x
C. = 2.63 + 0.724x
D. = 1.45 + 0.724x
Reset Selection
Question 4 of 23
1.0 Points
A single variable X can explain a large percentage of the variation in some other variable Y when the two variables are:
A.highly correlated
B.directly related
C.inversely related
D.mutually exclusive
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Question 5 of 23
1.0 Points
Data for a sample of 25 apartments in a particular neighborhood are provided in the worksheet Apartments in the Excel workbook Apartments.xlsx. Using that data, find the estimated regression equation which can be used to estimate the monthly rent for apartments in this neighborhood using size as the predictor variable.
Apartments.xlsx
A. 177.12 + 1.065(size)
B.177.12 + 0.8500(size)
C.1.065 + 177.12(size)
D.197.12 + 2.065(size)
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Part 3 of 16 -
Question 6 of 23
1.0 Points
A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to determine whether there is a difference between the effectiveness for women and for men. Assume α = 0.05. What is the test value?
Women
Men
Sample size
50
80
Mean effect
7
6.95
Sample variance
3
4
A.t = 3.252
B.t = 0.151
C.z = 0.081
D.z = 0.455
Reset Selection
Question 7 of 23
.
Approximately 20 of 1000 fish in a pond are affected with a skin .docxrossskuddershamus
Approximately 20% of 1000 fish in a pond are affected with a skin disease. A random sample of 20 fish are selected. What is the mean of the sampling distribution for the proportion of your sample that is infected? What is the standard deviation of the sampling distribution for the proportion of your sample that is infected?
Chapter 4, Section 3, Exercise 075
Match the p-values with the appropriate conclusion:
(a) The evidence against the null hypothesis is significant, but only at the 10% level.
(b) The evidence against the null and in favor of the alternative is very strong.
(c) There is not enough evidence to reject the null hypothesis, even at the 10% level.
(d) The result is significant at a 5% level but not at a 1% level.
Chapter 4, Section 3, Exercise 082
Sleep or Caffeine for Memory?
The consumption of caffeine to benefit alertness is a common activity practiced by 90% of adults in North America. Often caffeine is used in order to replace the need for sleep. One recent study1 compares students' ability to recall memorized information after either the consumption of caffeine or a brief sleep. A random sample of 35 adults (between the ages of 18-39 ) were randomly divided into three groups and verbally given a list of 24 words to memorize. During a break, one of the groups takes a nap for an hour and a half, another group is kept awake and then given a caffeine pill an hour prior to testing, and the third group is given a placebo. The response variable of interest is the number of words participants are able to recall following the break. The summary statistics for the three groups are in the table below. We are interested in testing whether there is evidence of a difference in average recall ability between any two of the treatments. Thus we have three possible tests between different pairs of groups: Sleep vs Caffeine, Sleep vs Placebo, and Caffeine vs Placebo.
Group
Sample size
Mean
Standard Deviation
Sleep
12
15.25
3.3
Caffeine
12
12.25
3.5
Placebo
11
13.70
3.0
1 Mednick, Cai, Kanady, and Drummond, "Comparing the benefits of caffeine, naps and placebo on verbal, motor and perceptual memory", Behavioural Brain Research, 193 (2008), 79-86.
Warning
Don't show me this message again for the assignment
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Cancel
(a) In the test comparing the sleep group to the caffeine group, the p-value is 0.003.
What is the conclusion of the test?
H0.
In the sample , which group had better recall ability?
According to the test results, do you think sleep is really better than caffeine for recall ability?
Warning
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Ok
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(b) In the test comparing the sleep group to the placebo group, the p-value is 0.06.
What is the conclusion of the test, using a 5% significance level?
H0.
What is the conclusion of the test, if we use a 10% significance level?
H0.
How strong is the evidence of a difference in mean recall ability between these two treatments?
Warn.
Week 2 Assignment1. A. What is the probability of rolling a four.docxmelbruce90096
Week 2 Assignment
1. A. What is the probability of rolling a four in the gambling dice game of craps (given two six sided dice)?
B. What is the probability that a player can roll a four 3 times in a row (assume that rolling the dice each time does not affect the outcome of the next roll)?
2. Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. A random sample of 30 people is picked from population A, and random sample of 50 people is selected from Population B. Which sample mean will probably yield a more accurate estimate of its population mean? Why?
3.
Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. The mean vein size is found to be 7.8mm with an SD of 2.1. Using a t distribution table, what are the confidence limits for a 95% confidence interval? For a 99% confidence interval?
4.
In a pilot study evaluating the use of a new drug to lower resting heart rates (HR) of patients, the following data was recorded:
Subject #
Resting HR
001
72
002
88
003
71
004
87
005
64
006
77
007
79
008
59
009
66
010
68
011
78
012
89
013
91
014
81
015
77
016
75
017
69
Given that the average resting HR of the general population for this study is 72, use StatCrunch to perform the appropriate t test. What is the value of t? Using an alpha of 0.05, is the t statistic significant? Why? What are the confidence limits for a 95% confidence interval here and what do they mean for this patient group? Copy and Paste your work from StatCrunch into your Word document submission.
5.
Write one or two sentences that could be used to report the results obtained for the t-test in Exercise 4.
6.
For which of the following situations is the independent groups t-test appropriate (if inappropriate, why?):
a.
The independent variable is infant birth weight at one week (normal vs high); the dependent variable is resting heart rate.
b.
The independent variable is radiation treatment on throat cancer patients (after a low dose and then a high dose treatment); the dependent variable is white blood cell count.
c.
The IV is infant birth weight (low vs normal birth weight); the DV is number of days absent from school in first grade.
d.
The IV is gender (male vs female); the DV is compliance vs noncompliance with a medication regimen.
e.
The independent variable is married status (single vs divorced vs married); the dependent variable is happiness measured on a scale from 1 to 50
7.
For which of the following situations is the dependent groups t-test appropriate (if not appropriate, why?)
a.
The IV is presence or absence of conversation directed to comatose patients (same patients with and without conversation); the DV is the patients’ intracranial pressure.
b.
The IV is birth type (home vs hospital); the DV is perceived functional ability of the patient 48 hours after surgery.
c.
The IV is time since incarceration (1 months vs 3 months vs 6 months); the DV is body .
1Suppose that the average song length in America is 4 minutes wit.docxeugeniadean34240
1 Suppose that the average song length in America is 4 minutes with a standard deviation of 1.25 minutes. It is known that song length is not normally distributed. Find the probability that a single randomly selected song from the population will be longer than 4.25 minutes. Round to the nearest thousandth.
Answer
A. 0.579
B. 0.079
C. 0.421
D. This probability cannot be determined because we do not know the distribution of the population.
2 An outcome of an experiment or study that is large enough to have a real effect on people’s health or lifestyle is said to have clinical significance.
Answer
True
False
3 Are average SAT scores higher in schools where a smaller percentage of graduating students take the test? To answer this question 10 schools are sampled and the average SAT and percentage of students taking the test were recorded. 2002 SAT results of regional high schools were sampled and the data is given below. Use that data to test if there is a relation between the proportion of seniors that take the test and the average SAT scores. At 95% confidence level.
2002 SAT results of a sample of Western North Carolina High Schools.
Mean SAT scores
1106
1040
1013
1066
1061
1075
1058
997
1014
965
Percent tested
61
59
44
54
72
74
80
32
49
What is R2 for the equation?
A. R2=0.793
B.B. R2= 0.429
C. C. R2=0.326
D. D. R2=0.357
4. Suppose the Acme Drug Company develops a new drug, designed to prevent colds. The company states that the drug is equally effective for men and women. To test this claim, they choose a simple random sample of 100 women and 200 men from a population of 100,000 volunteers. At the end of the study, 38% of the women caught a cold; and 51% of the men caught a cold. State the null and alternative hypothesis:
Answer
A. H0: p1 = p2 : HA: p1 = p2 :
B. H0: p1 < p2 HA: p1< p2 :
C. H0: p1 > p2 HA: p1> p2 :
D. H0: p1 ≠ p2 HA: p1= p2 :
5 An insurance company is reviewing its current policy rates. When originally setting the rates they believed that the average claim amount was $1,800. They are concerned that the true mean is actually higher than this, because they could potentially lose a lot of money. They randomly select 40 claims, and calculate a sample mean of $1,950. Assuming that the standard deviation of claims is $500, and set α = 0.05, test to see if the insurance company should be concerned. What do we interpret from the problem?
Answer
A. P value < α so we reject Ho
B. P value > α so we do not reject Ho
C. P value < α so we do not reject Ho
D. P value < α so we reject Ho
6 1. To achieve a significance level of α, if the p-value is less than (or equal to) α, then________________
Answer
A. accept the null hypothesis
B. do not reject the null hypothesis
C. reject the null hypothesis
D. accept the alternative hypothesis
7 1. Neuroscience researchers examined the impact of environment on rat development. Rats were.
14 + 8 Answers and calculations as basic statistics student would ex.docxjeanettehully
14 + 8 Answers and calculations as basic statistics student would explain put into both an MS Excel spreadsheet and copied into MS Word doc format. Due by 7pm 2/2/14.
Week 2 Assignment
A. What is the probability of rolling a four in the gambling dice game of craps (given two six sided dice)?
B. What is the probability that a player can roll a four 3 times in a row (assume that rolling the dice each time does not affect the outcome of the next roll)?
Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. A random sample of 30 people is picked from population A, and random sample of 50 people is selected from Population B. Which sample mean will probably yield a more accurate estimate of its population mean? Why?
3. Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. The mean vein size is found to be 7.8mm with an SD of 2.1. Using a
t
distribution table, what are the confidence limits for a 95% confidence interval? For a 99% confidence interval?
4. In a pilot study evaluating the use of a new drug to lower resting heart rates (HR) of patients, the following data was recorded:
Subject #
Resting HR
001
72
002
88
003
71
004
87
005
64
006
77
007
79
008
59
009
66
010
68
011
78
012
89
013
91
014
81
015
77
016
75
017
69
Given that the average resting HR of the general population for this study is 72, use StatCrunch to perform the appropriate
t
test. What is the value of
t
? Using an alpha of 0.05, is the
t
statistic significant? Why? What are the confidence limits for a 95% confidence interval here and what do they mean for this patient group? Copy and Paste your work from StatCrunch into your Word document submission.
5. Write one or two sentences that could be used to report the results obtained for the t-test in Exercise 4.
6. For which of the following situations is the
independent
groups t-test appropriate (if inappropriate, why?):
a. The independent variable is infant birth weight at one week (normal vs high); the dependent variable is resting heart rate.
b. The independent variable is radiation treatment on throat cancer patients (after a low dose and then a high dose treatment); the dependent variable is white blood cell count.
c. The IV is infant birth weight (low vs normal birth weight); the DV is number of days absent from school in first grade.
d. The IV is gender (male vs female); the DV is compliance vs noncompliance with a medication regimen.
e. The independent variable is married status (single vs divorced vs married); the dependent variable is happiness measured on a scale from 1 to 50
7. For which of the following situations is the
dependent
groups t-test appropriate (if not appropriate, why?)
a. The IV is presence or absence of conversation directed to comato.
JKN 10 Inference 2 Populations.Consider the following set of d.docxchristiandean12115
JKN 10 Inference 2 Populations.
Consider the following set of data.
Pairs
1
2
3
4
5
Sample A
9
4
3
5
3
Sample B
3
8
2
7
1
(a) Find the paired differences, d = A - B, for this set of data.
(d1)
(d2)
(d3)
(d4)
(d5)
(b) Find the mean d of the paired differences. (Give your answer correct to one decimal place.)
(c) Find the standard deviation sd of the paired differences. (Give your answer correct to two decimal places.)
Salt-free diets are often prescribed to people with high blood pressure. The following data values were obtained from an experiment designed to estimate the reduction in diastolic blood pressure as a result of consuming a salt-free diet for 2 weeks. Eight subjects had their blood pressure measured and then ate a salt free diet for two weeks and had their blood pressure measured again. Assume diastolic readings to be normally distributed.
Before
99
105
93
102
100
108
107
97
After
92
102
91
94
96
98
100
93
(a) The proper TI-83 program to use to compute the confidence interval for the mean reduction in blood pressure is:
(b) Find the 98% confidence interval for the mean reduction. (Give your answers correct to two decimal places.)
Lower Limit
Upper Limit
(c) Which of the following statements is true about the confidence interval? (More than one may apply)
We are 98% confident that the true mean of the individual differences in blood pressure is in the intervalIf we took 100 samples and constructed 100 confidence intervals for the mean of the individual differences, approximately 98 of them would contain the true mean of the individual differencesWe are 98 % confident that the mean of the after data minus the mean of the before data is in the intervalWe are 98 % confident that the mean of the before data minus the mean of the after data is in the interval
An experiment was designed to estimate the mean difference in weight gain for pigs fed ration A as compared with those fed ration B. Eight pairs of pigs were used. The pigs within each pair were litter-mates. The rations were assigned at random to the two animals within each pair. The gains (in pounds) after 45 days are shown in the following table. Assuming weight gain is normal, find the 99% confidence interval estimate for the mean of the differences μd, where d = ration A - ration B. (Give your answers correct to two decimal places.)
Litter
1
2
3
4
5
6
7
8
Ration A
56
40
60
59
43
40
50
46
Ration B
54
30
50
56
37
36
42
40
Lower Limit
Upper Limit
State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test these claims.
(a) There is an increase in the mean difference between post-test and pretest scores.(d=post-test scores - pretest scores)
Ho: μd
0
Ha: μd
0
(b) Following a special training session, it is believed that the mean of the difference in performance scores will not be zero.
Ho: μd
0
Ha: μd
0
(c) On average, there is no difference between the readings from two inspectors on .
This quiz consists of 20 questions most appear to be similar but now.docxamit657720
This quiz consists of 20 questions most appear to be similar but now really. I ned someone who is familiar with bio-statistics and math. The due date is tomorrow 4 pm PST. or (16:00). Please if you accept handshake you must do the work not get from previous papers or tell me you had emergency an hour before its due. This is important to me.
attached is the file just in case you need it in word format. Thank you in advance.
1.
The standard deviation of the diameter at breast height, or DBH, of the slash pine tree is less than one inch. Identify the Type I error. (Points : 1)
[removed] Fail to support the claim σ < 1 when σ < 1 is true.
[removed] Support the claim μ < 1 when μ = 1 is true.
[removed]
Support the claim σ < 1 when σ = 1 is true.
[removed] Fail to support the claim μ < 1 when μ < 1 is true.
1a. The EPA claims that fluoride in children's drinking water should be at a mean level of less than 1.2 ppm, or parts per million, to reduce the number of dental cavities. Identify the Type I error. (Points : 1)
[removed] Fail to support the claim σ < 1.2 when σ < 1.2 is true.
[removed] Support the claim μ < 1.2 when μ = 1.2 is true.
[removed] Support the claim σ < 1.2 when σ = 1.2 is true.
[removed] Fail to support the claim μ < 1.2 when μ < 1.2 is true.
2.
Biologists are investigating if their efforts to prevent erosion on the bank of a stream have been statistically significant. For this stream, a narrow channel width is a good indicator that erosion is not occurring. Test the claim that the mean width of ten locations within the stream is greater than 3.7 meters. Assume that a simple random sample has been taken, the population standard deviation is not known, and the population is normally distributed. Use the following sample data:
3.3 3.3 3.5 4.9 3.5 4.1 4.1 5 7.3 6.2
What is the P-value associated with your test statistic? Report your answer with three decimals, e.g., .987 (Points : 1)
2a. Medical researchers studying two therapies for treating patients infected with Hepatitis C found the following data. Assume a .05 significance level for testing the claim that the proportions are not equal. Also, assume the two simple random samples are independent and that the conditions np ≥ 5 and nq ≥ 5 are satisfied.
Therapy 1
Therapy 2
Number of patients
39
47
Eliminated Hepatitis
20
13
C infection
Construct a 95% confidence interval estimate of the odds ratio of the odds for having Hepatitis C after Therapy 1 to the odds for having Hepatitis C after Therapy 2. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5)
[removed]
3. Researchers studying sleep loss followed the length of sleep, in hours, of 10 individuals with insomnia before and after cognitive behavioral therapy (CBT). Assume a .05 significance level to test the claim that there is a difference between the length of sleep of individuals before and after CBT. Also, assume the data consist of matched pair ...
1. You are conducting a study to see if the probability of a true ne.docxcarlstromcurtis
1. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.25.
With
H
1 : p >> 0.25 you obtain a test statistic of z=1.397z=1.397.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
2. You are conducting a study to see if the probability of catching the flu this year is significantly more than 0.27.
With
H
1 : p >> 0.27 you obtain a test statistic of z=1.722z=1.722.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
3. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.81. You use a significance level of α=0.001α=0.001.
H0:p=0.81H0:p=0.81
H1:p>0.81H1:p>0.81
You obtain a sample of size n=218n=218 in which there are 184 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
a) less than (or equal to) αα
b) greater than αα
This test statistic leads to a decision to...
a) reject the null
b) accept the null
c) fail to reject the null
As such, the final conclusion is that...
a) There is sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
b)There is not sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
c)The sample data support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
d)There is not sufficient sample evidence to support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
4. You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly different from 0.23. You use a significance level of α=0.02α=0.02.
H0:p=0.23H0:p=0.23
H1:p≠0.23H1:p≠0.23
You obtain a sample of size n=167n=167 in which there are 32 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
A) less than (or equal to) αα
B) greater than αα
This test statistic leads to a decision to...
A)reject the null
B)accept the null
C)fail to reject the null
As such, the final conclusion is that...
A) There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate .
My significant event was losing my father at an early age. So if y.docxrosemarybdodson23141
My significant event was losing my father at an early age. So if you are good at psychology describe how that can affect a young woman without a dad at an early age.
Assignment 1.1: Significant Event Draft
Due Week 4 Note: Students will turn in this assignment twice: first as a draft (Week 4 Assignment) and then as a final paper (Week 8 Assignment). Students will submit first draft of the assignment and then submit the final draft after receiving feedback from the professor and making the recommended changes. They will be graded separately for each submission of the assignment.
Select a significant event (either positive or negative) that occurred before you reached adulthood and that has had a life-shaping effect on your life. In this assignment, you will use what you’ve learned in Weeks 1 thru 4 of this course and base your paper on your readings, along with information from library research, to discuss psychological aspects of your event.
Write a two to three (2-3) page paper in which you:
1.Briefly describe your significant event (one to two [1-2] sentences).
2.Describe your event in terms of at least two (2) different perspectives in psychology (e.g., behavioral, cognitive, psychodynamic, cultural/social, etc.)
3.Determine what learning (e.g., classical, operant, etc.) may have resulted from your event, or arisen because of your event.
4.Discuss why the memory of the event you described may or may not be completely accurate.
5.Use at least two (2) quality academic resources in this assignment. Note: One of these resources may be your textbook. Articles from professional journals are certainly a high quality resource. Magazine and newspaper articles are also accepted for this assignment. Articles published on the Internet may also be suitable, if they originate with credible persons or organizations. Please note that articles from Wikipedia, ask.com, and the like are not suitable.
Your assignment must follow these formatting requirements:
•Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; references must follow APA format. Check with your professor for any additional instructions.
•Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required page length.
The specific course learning outcomes associated with this assignment are:
•Relate psychological concepts to real-world situations.
•Describe the major theories of learning, memory, cognition, consciousness, development, and social psychology.
•Use technology and information resources to research issues in psychology.
Part 1 of 16 -
Question 1 of 23
1.0 Points
A company operates four machines during three shifts each day. From production records, the data in the table below were collected. At the .05 level of significance test to determine if the number of breakdowns is independent of the sh.
Statsmath1. You are conducting a study to see if the probabi.docxrafaelaj1
Stats
math
1. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.25.
With
H
1 : p >> 0.25 you obtain a test statistic of z=1.397z=1.397.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
2. You are conducting a study to see if the probability of catching the flu this year is significantly more than 0.27.
With
H
1 : p >> 0.27 you obtain a test statistic of z=1.722z=1.722.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
3. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.81. You use a significance level of α=0.001α=0.001.
H0:p=0.81H0:p=0.81
H1:p>0.81H1:p>0.81
You obtain a sample of size n=218n=218 in which there are 184 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
a) less than (or equal to) αα
b) greater than αα
This test statistic leads to a decision to...
a) reject the null
b) accept the null
c) fail to reject the null
As such, the final conclusion is that...
a) There is sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
b)There is not sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
c)The sample data support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
d)There is not sufficient sample evidence to support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
4. You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly different from 0.23. You use a significance level of α=0.02α=0.02.
H0:p=0.23H0:p=0.23
H1:p≠0.23H1:p≠0.23
You obtain a sample of size n=167n=167 in which there are 32 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
A) less than (or equal to) αα
B) greater than αα
This test statistic leads to a decision to...
A)reject the null
B)accept the null
C)fail to reject the null
As such, the final conclusion is that...
A) There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their pros.
1. The standard deviation of the diameter at breast height, or DBH.docxpaynetawnya
1. The standard deviation of the diameter at breast height, or DBH, of the slash pine tree is less than one inch. Identify the Type I error. (Points : 1)
Fail to support the claim σ < 1 when σ < 1 is true.
Support the claim μ < 1 when μ = 1 is true.
Support the claim σ < 1 when σ = 1 is true. Fail to support the claim μ < 1 when μ < 1 is true.
1a. The EPA claims that fluoride in children's drinking water should be at a mean level of less than 1.2 ppm, or parts per million, to reduce the number of dental cavities. Identify the Type I error. (Points : 1)
Fail to support the claim σ < 1.2 when σ < 1.2 is true.
Support the claim μ < 1.2 when μ = 1.2 is true.
Support the claim σ < 1.2 when σ = 1.2 is true.
Fail to support the claim μ < 1.2 when μ < 1.2 is true.
2. Biologists are investigating if their efforts to prevent erosion on the bank of a stream have been statistically significant. For this stream, a narrow channel width is a good indicator that erosion is not occurring. Test the claim that the mean width of ten locations within the stream is greater than 3.7 meters. Assume that a simple random sample has been taken, the population standard deviation is not known, and the population is normally distributed. Use the following sample data:
3.3 3.3 3.5 4.9 3.5 4.1 4.1 5 7.3 6.2
What is the P-value associated with your test statistic? Report your answer with three decimals, e.g., .987 (Points : 1)
2a. Medical researchers studying two therapies for treating patients infected with Hepatitis C found the following data. Assume a .05 significance level for testing the claim that the proportions are not equal. Also, assume the two simple random samples are independent and that the conditions np ≥ 5 and nq ≥ 5 are satisfied.
Therapy 1
Therapy 2
Number of patients
39
47
Eliminated Hepatitis
20
13
C infection
Construct a 95% confidence interval estimate of the odds ratio of the odds for having Hepatitis C after Therapy 1 to the odds for having Hepatitis C after Therapy 2. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5)
3. Researchers studying sleep loss followed the length of sleep, in hours, of 10 individuals with insomnia before and after cognitive behavioral therapy (CBT). Assume a .05 significance level to test the claim that there is a difference between the length of sleep of individuals before and after CBT. Also, assume the data consist of matched pairs, the samples are simple random samples, and the pairs of values are from a population having a distribution that is approximately normal.
Individual
1
2
3
4
5
6
7
8
9
10
Before
6
5
4
5
3
4
5
3
4
2
CBT
After
8
8
7
6
7
6
6
5
7
5
CBT
Construct a 95% confidence interval estimate of the mean difference between the lengths of sleep. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5)
3a. Scientists, researching large woody debris (LWD), surveyed the number of LWD ...
Solution manual for design and analysis of experiments 9th edition douglas ...Salehkhanovic
Solution Manual for Design and Analysis of Experiments - 9th Edition
Author(s): Douglas C Montgomery
Solution manual for 9th edition include chapters 1 to 15. There is one PDF file for each of chapters.
Testing hypothesis (methods of testing the statement of organizations)syedahadisa929
My ppt is about the testing hypothesis which is used in statistics to check whether the statement of company, organization, or institution is true or false
What is statistical analysis? It's the science of collecting, exploring and presenting large amounts of data to discover underlying patterns and trends. Statistics are applied every day – in research, industry and government – to become more scientific about decisions that need to be made.
The QuestionIs management in the public sector similar to or di.docxhelen23456789
The Question:
Is management in the public sector similar to or different from management in the private sector? Support your answer with at least one citation from the text, and provide at least one example.
Required Textbooks
Title
:
Public Management: A Three-Dimensional Approach
Author:
Carolyn J.Hill and Laurence E. Lynn Jr
ISBN:
978-0-87289-348-1
Publisher:
Congressional Quarterly Press
.
The Question To Be AnsweredWhat managers most often want to kn.docxhelen23456789
The Question To Be Answered:
'What managers most often want to know about their organization's culture is how to change it. Regardless of the perspective adopted, all organization culture researchers acknowledge that top managers are powerful members of an organization's culture. And, because power grants them a disproportionate share of attention, their behavior becomes a role model for others, their words are carefully attended, and their directives are obeyed. But what is recommended to managers on the basis of culture theory differs markedly according to the perspectives adopted' (Hatch and Cunliffe, 2013: 185).
Choose two of the four perspectives and discuss their different views on organisational culture and how their advice to managers who are seeking to influence organisational culture might be different.
The four perspectives are Modernism, Critical Theory, Symbolic Interpretive and Postmodernism.
I would pefer if focused on Modernism and Symbolic Interpretive.
Required word count 2000 words excluding the references.
Required readings
(located on blackboard site):
1.Chapter 6 and pp 311-318
(Hatch and Cunliffe)
2.Fleming, P and Spicer, A. (2003) ‘Working at a cynical distance: Implications for power, subjectivity and resistance’
3.Wilson, F. (2014) ‘Chapter 11: Culture’ in
Organisational Behaviour and Work
, pp. 224-241.
4.Xu, Y., and Weller, P.,
Inside the World Bank,
“The Staff and Their organizational Culture”, pp. 74-82.
Recommended readings
(located on blackboard site):
1.Martin, J. & Frost, P. 2012, ‘Chapter 30: The organisational culture war games' in Gittell, Jody Hoffer., Godwyn, Mary & Gittell, Jody Hoffer,
Sociology of organizations : structures and relationships
, Pine Forge Press/Sage, Thousand Oaks, Calif., pp. 315-336
2.Zhang, C. & Iles, P. 2014, ‘Chapter 11:Organisational culture' in Rees, Gary & Smith, Paul,
Strategic human resource management : an international perspective
, SAGE, Los Angeles, pp. 383-439.
.
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This quiz consists of 20 questions most appear to be similar but now.docxamit657720
This quiz consists of 20 questions most appear to be similar but now really. I ned someone who is familiar with bio-statistics and math. The due date is tomorrow 4 pm PST. or (16:00). Please if you accept handshake you must do the work not get from previous papers or tell me you had emergency an hour before its due. This is important to me.
attached is the file just in case you need it in word format. Thank you in advance.
1.
The standard deviation of the diameter at breast height, or DBH, of the slash pine tree is less than one inch. Identify the Type I error. (Points : 1)
[removed] Fail to support the claim σ < 1 when σ < 1 is true.
[removed] Support the claim μ < 1 when μ = 1 is true.
[removed]
Support the claim σ < 1 when σ = 1 is true.
[removed] Fail to support the claim μ < 1 when μ < 1 is true.
1a. The EPA claims that fluoride in children's drinking water should be at a mean level of less than 1.2 ppm, or parts per million, to reduce the number of dental cavities. Identify the Type I error. (Points : 1)
[removed] Fail to support the claim σ < 1.2 when σ < 1.2 is true.
[removed] Support the claim μ < 1.2 when μ = 1.2 is true.
[removed] Support the claim σ < 1.2 when σ = 1.2 is true.
[removed] Fail to support the claim μ < 1.2 when μ < 1.2 is true.
2.
Biologists are investigating if their efforts to prevent erosion on the bank of a stream have been statistically significant. For this stream, a narrow channel width is a good indicator that erosion is not occurring. Test the claim that the mean width of ten locations within the stream is greater than 3.7 meters. Assume that a simple random sample has been taken, the population standard deviation is not known, and the population is normally distributed. Use the following sample data:
3.3 3.3 3.5 4.9 3.5 4.1 4.1 5 7.3 6.2
What is the P-value associated with your test statistic? Report your answer with three decimals, e.g., .987 (Points : 1)
2a. Medical researchers studying two therapies for treating patients infected with Hepatitis C found the following data. Assume a .05 significance level for testing the claim that the proportions are not equal. Also, assume the two simple random samples are independent and that the conditions np ≥ 5 and nq ≥ 5 are satisfied.
Therapy 1
Therapy 2
Number of patients
39
47
Eliminated Hepatitis
20
13
C infection
Construct a 95% confidence interval estimate of the odds ratio of the odds for having Hepatitis C after Therapy 1 to the odds for having Hepatitis C after Therapy 2. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5)
[removed]
3. Researchers studying sleep loss followed the length of sleep, in hours, of 10 individuals with insomnia before and after cognitive behavioral therapy (CBT). Assume a .05 significance level to test the claim that there is a difference between the length of sleep of individuals before and after CBT. Also, assume the data consist of matched pair ...
1. You are conducting a study to see if the probability of a true ne.docxcarlstromcurtis
1. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.25.
With
H
1 : p >> 0.25 you obtain a test statistic of z=1.397z=1.397.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
2. You are conducting a study to see if the probability of catching the flu this year is significantly more than 0.27.
With
H
1 : p >> 0.27 you obtain a test statistic of z=1.722z=1.722.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
3. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.81. You use a significance level of α=0.001α=0.001.
H0:p=0.81H0:p=0.81
H1:p>0.81H1:p>0.81
You obtain a sample of size n=218n=218 in which there are 184 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
a) less than (or equal to) αα
b) greater than αα
This test statistic leads to a decision to...
a) reject the null
b) accept the null
c) fail to reject the null
As such, the final conclusion is that...
a) There is sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
b)There is not sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
c)The sample data support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
d)There is not sufficient sample evidence to support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
4. You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly different from 0.23. You use a significance level of α=0.02α=0.02.
H0:p=0.23H0:p=0.23
H1:p≠0.23H1:p≠0.23
You obtain a sample of size n=167n=167 in which there are 32 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
A) less than (or equal to) αα
B) greater than αα
This test statistic leads to a decision to...
A)reject the null
B)accept the null
C)fail to reject the null
As such, the final conclusion is that...
A) There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate .
My significant event was losing my father at an early age. So if y.docxrosemarybdodson23141
My significant event was losing my father at an early age. So if you are good at psychology describe how that can affect a young woman without a dad at an early age.
Assignment 1.1: Significant Event Draft
Due Week 4 Note: Students will turn in this assignment twice: first as a draft (Week 4 Assignment) and then as a final paper (Week 8 Assignment). Students will submit first draft of the assignment and then submit the final draft after receiving feedback from the professor and making the recommended changes. They will be graded separately for each submission of the assignment.
Select a significant event (either positive or negative) that occurred before you reached adulthood and that has had a life-shaping effect on your life. In this assignment, you will use what you’ve learned in Weeks 1 thru 4 of this course and base your paper on your readings, along with information from library research, to discuss psychological aspects of your event.
Write a two to three (2-3) page paper in which you:
1.Briefly describe your significant event (one to two [1-2] sentences).
2.Describe your event in terms of at least two (2) different perspectives in psychology (e.g., behavioral, cognitive, psychodynamic, cultural/social, etc.)
3.Determine what learning (e.g., classical, operant, etc.) may have resulted from your event, or arisen because of your event.
4.Discuss why the memory of the event you described may or may not be completely accurate.
5.Use at least two (2) quality academic resources in this assignment. Note: One of these resources may be your textbook. Articles from professional journals are certainly a high quality resource. Magazine and newspaper articles are also accepted for this assignment. Articles published on the Internet may also be suitable, if they originate with credible persons or organizations. Please note that articles from Wikipedia, ask.com, and the like are not suitable.
Your assignment must follow these formatting requirements:
•Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; references must follow APA format. Check with your professor for any additional instructions.
•Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required page length.
The specific course learning outcomes associated with this assignment are:
•Relate psychological concepts to real-world situations.
•Describe the major theories of learning, memory, cognition, consciousness, development, and social psychology.
•Use technology and information resources to research issues in psychology.
Part 1 of 16 -
Question 1 of 23
1.0 Points
A company operates four machines during three shifts each day. From production records, the data in the table below were collected. At the .05 level of significance test to determine if the number of breakdowns is independent of the sh.
Statsmath1. You are conducting a study to see if the probabi.docxrafaelaj1
Stats
math
1. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.25.
With
H
1 : p >> 0.25 you obtain a test statistic of z=1.397z=1.397.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
2. You are conducting a study to see if the probability of catching the flu this year is significantly more than 0.27.
With
H
1 : p >> 0.27 you obtain a test statistic of z=1.722z=1.722.
Use a normal distribution calculator and the test statistic to find the P-value accurate to 4 decimal places. It may be left-tailed, right-tailed, or 2-tailed.
P-value =
3. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.81. You use a significance level of α=0.001α=0.001.
H0:p=0.81H0:p=0.81
H1:p>0.81H1:p>0.81
You obtain a sample of size n=218n=218 in which there are 184 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
a) less than (or equal to) αα
b) greater than αα
This test statistic leads to a decision to...
a) reject the null
b) accept the null
c) fail to reject the null
As such, the final conclusion is that...
a) There is sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
b)There is not sufficient evidence to warrant rejection of the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
c)The sample data support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
d)There is not sufficient sample evidence to support the claim that the probability of a true negative on a test for a certain cancer is more than 0.81.
4. You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly different from 0.23. You use a significance level of α=0.02α=0.02.
H0:p=0.23H0:p=0.23
H1:p≠0.23H1:p≠0.23
You obtain a sample of size n=167n=167 in which there are 32 successes.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
A) less than (or equal to) αα
B) greater than αα
This test statistic leads to a decision to...
A)reject the null
B)accept the null
C)fail to reject the null
As such, the final conclusion is that...
A) There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their pros.
1. The standard deviation of the diameter at breast height, or DBH.docxpaynetawnya
1. The standard deviation of the diameter at breast height, or DBH, of the slash pine tree is less than one inch. Identify the Type I error. (Points : 1)
Fail to support the claim σ < 1 when σ < 1 is true.
Support the claim μ < 1 when μ = 1 is true.
Support the claim σ < 1 when σ = 1 is true. Fail to support the claim μ < 1 when μ < 1 is true.
1a. The EPA claims that fluoride in children's drinking water should be at a mean level of less than 1.2 ppm, or parts per million, to reduce the number of dental cavities. Identify the Type I error. (Points : 1)
Fail to support the claim σ < 1.2 when σ < 1.2 is true.
Support the claim μ < 1.2 when μ = 1.2 is true.
Support the claim σ < 1.2 when σ = 1.2 is true.
Fail to support the claim μ < 1.2 when μ < 1.2 is true.
2. Biologists are investigating if their efforts to prevent erosion on the bank of a stream have been statistically significant. For this stream, a narrow channel width is a good indicator that erosion is not occurring. Test the claim that the mean width of ten locations within the stream is greater than 3.7 meters. Assume that a simple random sample has been taken, the population standard deviation is not known, and the population is normally distributed. Use the following sample data:
3.3 3.3 3.5 4.9 3.5 4.1 4.1 5 7.3 6.2
What is the P-value associated with your test statistic? Report your answer with three decimals, e.g., .987 (Points : 1)
2a. Medical researchers studying two therapies for treating patients infected with Hepatitis C found the following data. Assume a .05 significance level for testing the claim that the proportions are not equal. Also, assume the two simple random samples are independent and that the conditions np ≥ 5 and nq ≥ 5 are satisfied.
Therapy 1
Therapy 2
Number of patients
39
47
Eliminated Hepatitis
20
13
C infection
Construct a 95% confidence interval estimate of the odds ratio of the odds for having Hepatitis C after Therapy 1 to the odds for having Hepatitis C after Therapy 2. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5)
3. Researchers studying sleep loss followed the length of sleep, in hours, of 10 individuals with insomnia before and after cognitive behavioral therapy (CBT). Assume a .05 significance level to test the claim that there is a difference between the length of sleep of individuals before and after CBT. Also, assume the data consist of matched pairs, the samples are simple random samples, and the pairs of values are from a population having a distribution that is approximately normal.
Individual
1
2
3
4
5
6
7
8
9
10
Before
6
5
4
5
3
4
5
3
4
2
CBT
After
8
8
7
6
7
6
6
5
7
5
CBT
Construct a 95% confidence interval estimate of the mean difference between the lengths of sleep. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5)
3a. Scientists, researching large woody debris (LWD), surveyed the number of LWD ...
Solution manual for design and analysis of experiments 9th edition douglas ...Salehkhanovic
Solution Manual for Design and Analysis of Experiments - 9th Edition
Author(s): Douglas C Montgomery
Solution manual for 9th edition include chapters 1 to 15. There is one PDF file for each of chapters.
Testing hypothesis (methods of testing the statement of organizations)syedahadisa929
My ppt is about the testing hypothesis which is used in statistics to check whether the statement of company, organization, or institution is true or false
What is statistical analysis? It's the science of collecting, exploring and presenting large amounts of data to discover underlying patterns and trends. Statistics are applied every day – in research, industry and government – to become more scientific about decisions that need to be made.
Similar to The quiz has two portions Multiple Choice (8 problems, 32 p.docx (20)
The QuestionIs management in the public sector similar to or di.docxhelen23456789
The Question:
Is management in the public sector similar to or different from management in the private sector? Support your answer with at least one citation from the text, and provide at least one example.
Required Textbooks
Title
:
Public Management: A Three-Dimensional Approach
Author:
Carolyn J.Hill and Laurence E. Lynn Jr
ISBN:
978-0-87289-348-1
Publisher:
Congressional Quarterly Press
.
The Question To Be AnsweredWhat managers most often want to kn.docxhelen23456789
The Question To Be Answered:
'What managers most often want to know about their organization's culture is how to change it. Regardless of the perspective adopted, all organization culture researchers acknowledge that top managers are powerful members of an organization's culture. And, because power grants them a disproportionate share of attention, their behavior becomes a role model for others, their words are carefully attended, and their directives are obeyed. But what is recommended to managers on the basis of culture theory differs markedly according to the perspectives adopted' (Hatch and Cunliffe, 2013: 185).
Choose two of the four perspectives and discuss their different views on organisational culture and how their advice to managers who are seeking to influence organisational culture might be different.
The four perspectives are Modernism, Critical Theory, Symbolic Interpretive and Postmodernism.
I would pefer if focused on Modernism and Symbolic Interpretive.
Required word count 2000 words excluding the references.
Required readings
(located on blackboard site):
1.Chapter 6 and pp 311-318
(Hatch and Cunliffe)
2.Fleming, P and Spicer, A. (2003) ‘Working at a cynical distance: Implications for power, subjectivity and resistance’
3.Wilson, F. (2014) ‘Chapter 11: Culture’ in
Organisational Behaviour and Work
, pp. 224-241.
4.Xu, Y., and Weller, P.,
Inside the World Bank,
“The Staff and Their organizational Culture”, pp. 74-82.
Recommended readings
(located on blackboard site):
1.Martin, J. & Frost, P. 2012, ‘Chapter 30: The organisational culture war games' in Gittell, Jody Hoffer., Godwyn, Mary & Gittell, Jody Hoffer,
Sociology of organizations : structures and relationships
, Pine Forge Press/Sage, Thousand Oaks, Calif., pp. 315-336
2.Zhang, C. & Iles, P. 2014, ‘Chapter 11:Organisational culture' in Rees, Gary & Smith, Paul,
Strategic human resource management : an international perspective
, SAGE, Los Angeles, pp. 383-439.
.
The question What is Life” sounds like the premise of some bad lat.docxhelen23456789
The question "What is Life?” sounds like the premise of some bad late night soul-searching movie, but it is the basis upon which astrobiologists must search for life forms in the universe.
Find two articles on the web about the requirements for life or a unique living organism. The article should be written for a public audience, not in an academic journal.
.
the question is notions of visibility are central concepts within T.docxhelen23456789
the question is: notions of visibility are central concepts within TY's practice and concerns. What methods does Ty implement to open conversation on the presence of the trans body in terms of representation and politics?
info for the Guest
http://www.tyrras.com/u-r-here.html
he is transgender male.
.
The question is Research Plan and the topic for my research is Impac.docxhelen23456789
The question is Research Plan and the topic for my research is Impact of Organizational Culture on the procedure and technique of Accounting Research Plan.
The references should be in Harvard Style including:
Research Background
Research Question and Research Objectives
Theoretical Foundation
Ethical Consideration
References and Referencing Skills
1000 words+-(10%) (excluding reference list)
.
The question Go to httpwww.heritage.orgindexRanking.aspx (.docxhelen23456789
The question:
Go to
http://www.heritage.org/index/Ranking.aspx (Links to an external site.)Links to an external site.
to see the Heritage Foundation’s ranking of economic freedom in different countries. Click on any country to see how that country performed on ten different factors deemed important for economic freedom. Do you think if there seems to be a correlation between economic freedom and economic growth? Summarize your findings.
.
The Question As the global recession evolved into a sovereign.docxhelen23456789
The Question:
As the global recession evolved into a sovereign (government) debt crisis in the euro zone in 2010, many economists and policymakers started to question the survival of the euro, and in 2011, some even predicted an abandonment of the euro. The ultimate fate of the euro will help to answer the question of whether independent countries with diverse economies could successfully maintain a joint monetary policy and a single currency. Do you think the euro will survive? Discuss the pros and cons of the euro (a single currency) in the context of the current crises in the euro zone.
Requirements
Length: 1-2 pages, maximum 2 pages.
Must be typed on 8.5x11 paper (single space).
.
The quesion is What are the characteristics of transnational tele.docxhelen23456789
The quesion is: What are the characteristics of transnational television?
This is in relation to this reading
Chalaby, J. K. (2005), ‘Towards an Understanding of Media Transnationalism’, in J. K. Chalaby (ed.),
Transnational Television Worldwide: Towards A New Media Order
, London: I. B. Tauris, pp. 1-13.
This assesses your understanding of unit readings and lectures up to Week 4. Choose one question from each week’s tutorial activities in Weeks 2, 3 & 4 and write short answers to these questions (150-200 words each). The question above is only in relation to week 3 reading.
I have already done all the reasearch, which i will send to you, my main problem is needing to cut it down to 150-200 words and to re-word it so it isnt plagarised!!!
I would like someone who has experience with International Communictions and this topic, so if needed they can put their own spin and add any info I may have missed.
I am looking for someone whom I can start using on a regular basis, and I trust.
If you do well there will be more work to help me with!!
please do asap!
.
The Queen of TreesThis video shows the intimate relationship.docxhelen23456789
The Queen of Trees
This video shows the intimate relationships within a community of organisms in an African savannah ecosystem. Your task is to complete the questions and map out the connections among the various organisms within the community. You should indicate the trophic level to which the organism belongs, its relationship to the Queen and any other direct relationships to other organisms in the community. The connections within the community should be illustrated. The figure on page 3 of this handout gives an example of how to illustrate those connections. The arrow tips point in the directions of where the energy is flowing. For example, the fruit bats feed on the fruit of the fig tree so the arrow is a one-way directions towards the bats.
To submit this quiz: download the template, as you watch the video complete the table below, complete the questions on page 3, and complete the construction of your food web illustrating the connections listed in the table and then upload your document.
If you do not know how to construct the food web electronically, you may draw your food web, scan a digital image (or take a photo) of the food web and submit it.
Trophic levels
: The position that an organisms occupies in a food chain. It shows the flow of energy through an ecosystem. Energy is always lost from one trophic level to the next.
· Producers - autotrophic organisms using solar or chemical energy to produce all the organic nutrients for an ecosystem.
· Consumers - heterotrophic organisms that cannot make their own food. They get energy from the chemical bonds in the nutrients they eat.
· Primary consumers (herbivores) - eat primary producers (plants).
o Conversion efficiency: only 10 to 20 percent of the available energy passes from producers to primary consumers.
· Secondary consumers (carnivores) - eat primary consumers (herbivores).
o Conversion efficiency: only 5 to 10 percent of the available energy passes from primary consumers to secondary consumers.
· Tertiary consumers (carnivores) - eat secondary consumers (carnivores).
o The conversion efficiency for tertiary consumers may be as low as 1%.
· Omnivores - eat both plants and animals.
· Decomposers - break down dead tissues and wastes.
Table 1 – Relationships and trophic levels
Organism
Trophic Level
Connections with the Queen/community
Sycamore Fig Tree
Primary producer
Fig wasp
Grey Horn Bill
Secondary consumer
Uses the Queen as a nesting site, consumes insects that prey on queen
Caterpillars
Giraffes
Fig Cadidid
Pink Mantis
Vinegar Flies
Parasitic Nematodes
Ants
Hilda bug nymphs
Bees
Fig Cicadas
Monkeys
Gecko
Spider
Crocodile
Elephants
Tiger beetles
Butterflies
Seed bugs
Fruit bats
Primary consumers
Seed dispersal for the Queen
Questions
How does the Queen protect herself from predation?
What do t.
The quesion is What are the characteristics of transnational te.docxhelen23456789
The quesion is:
What are the characteristics of transnational television?
This is in relation to this reading
Chalaby, J. K. (2005), ‘Towards an Understanding of Media Transnationalism’, in J. K. Chalaby (ed.),
Transnational Television Worldwide: Towards A New Media Order
, London: I. B. Tauris, pp. 1-13.
This assesses your understanding of unit readings and lectures up to Week 4. Choose one question from each week’s tutorial activities in Weeks 2, 3 & 4 and write short answers to these questions (150-200 words each).
The question above is only in relation to week 3 reading.
I have already done all the reasearch, which i will send to you, my main problem is needing to cut it down to 150-200 words and to re-word it so it isnt plagarised!!!
I would like someone who has experience with International Communictions and this topic, so if needed they can put their own spin and add any info I may have missed.
I am looking for someone whom I can start using on a regular basis, and I trust. If you do well there will be more work to help me with!!
.
The quasi-science of anticipating environmental and competitive ch.docxhelen23456789
The quasi-science of anticipating environmental and competitive changes and estimating their importance to an organizations operation refers to
a. environmental scanning
[removed]
B.
SWOT analysis
[removed]
C.
business analysis
[removed]
D.
technological forecasting
.
the quastion Lets Use the Scientific Method !You are Captai.docxhelen23456789
the quastion
Let's Use the Scientific Method !
You are Captain Kirk on the USS Enterprise. You have traveled unexpectedly to a parallel universe. You come upon a planet that looks like Earth.
Use the Scientific Method to:
1) Make a hypothesis about your discovery
2) Design a way to testing your hypothesis
3) Determine whether your hypothesis is correct and whether it can be transformed into a theory.
+I attachment the lecture you can check it
.
The Qualitative Research Studies Adolescent Behaviors & Social .docxhelen23456789
The Qualitative Research Studies: Adolescent Behaviors & Social Media
Must be at least 1,200 words in length (not including title, abstract, and reference pages)
Must reference at least two scholarly sources (see
Scholarly, Peer-Reviewed, and Other Credible Sources (Links to an external site.)
), in addition to any required readings cited.
Must include the three articles analyzed in the reference list.
Must include title, abstract, and reference pages.
My projected research topic is Adolescent Behaviors, I am interested in the influence of the media on an adolescent’s behavior skills (research focus). I wanted to choose a topic that really interested me, but over the past few weeks, I’ve debated with myself, because I’ve been scared, that I won’t find enough resources for any other topic. So far, I think there is a ton of information on adolescents and how the media effects/enhanced their behaviors, I figured this would be a great start. This topic is personal for me, I’ve worked with so many children, and in recent years, I’ve witness a dramatic behavior change in multiple teens, and it was all related to something that stemmed from the media.
I could start this research with the factors that affect adolescent development: physical, cognitive, social and behavioral development. According to Yale researchers, Valkenburg and Piotroswski (2017), there’s been significant changes in the media landscape, meaning there’s not just the traditional media is not the only barrier. Adolescents have their own phones, iPads, tablets, and computers, which gives them a more direct access to the media.
For the quantitative resource to support this topic, I chose
The Journal of Korean Academy of Nursing
, which states, “To achieve the aim, a
quantitative
research design was used, involving questionnaires with data collected from 393 Saudi students aged 13-18 years
”
(Yoo and Ham, 2019). The second resource I found supports a qualitative study in this field, stating (Using a
qualitative
analysis approach, we found six major themes. Although entertainment media provided media role models for expected behavior in romantic relationships, it was also associated with the development of unrealistic relational expectations and perceived pressure to be in a romantic relationship.
According to these studies, adolescents with reported social media use had greater odds of increased suicidal ideation and suicide risk than those with no reported use, but these relationships were not statistically significant.
Social media use in adolescents with a psychiatric admission may be associated with the risk of self-injurious behaviors and could be a marker of impulsivity. Additional work should guide the assessment of social media use as part of a routine adolescent psychiatric history.
References:
Valkenburg, P. M., and Piotrowski, J. T. (2017). Plugged in. Retrieved from
https://yalebooks.yale.edu/sites/default/files/files/Media/9780300228090_UPDF.pd.
The reflective essay took an emotional appeal. I can sense both sy.docxhelen23456789
The reflective essay took an emotional appeal. I can sense both sympathy and empathy in certain parts of it. I think at some point or another we have all swallowed our pride and moved forward. The purpose or goal of the essay was to explain what the writer overcame during the current term to help him get better. What seem to be a good direction is explaining something that you have overcome this semester during the course. What you took from this was more than an academic challenge, it was the beginning of a personal growth. My overall impression of what you have as your draft is good job, stay on focus with this. The aspects you have touched on with your writing has been ethos, pathos, and kairo. Although you limited help from others, it was time you moved away from that. I would incorporate more about class and maybe throughout your understanding the first few weeks before asking for help. What led you to finally opening up. Give a few examples in your intro of pride in your academics before this that went well and others that didn’t. I’ve read your assignments assignment last week and this has a stronger feel to it. I would highly recommend that each paragraph you ask yourself why? Then from that answer within you expand on it and tie it in with academics.
To be more reflective in your essay I would go back to what was your reasoning for not asking for help in the past, when did you know it was time to let that go, and how will this help you academically from now on.
Yes, the essay is easy to follow I would advise not go off focus here, I could see how that could happen in an assignment where you are talking about something personal such as this.
Ask yourself why and what I recently learned myself is the so what and now what structuring.
Good luck!
Format: 1500 word response
About this assessment
Critical reflection is an assignment that is designed to assess the student's ability to reflect, describe, explain, justify and demonstrate knowledge of one or more of the main principles of the Leadership subject.
This is a two-part assessment item where you are required to address each of Parts A and B individually. The assessment requires the students to write two short reflective pieces using the theories and concepts covered in Parts A and B. Each reflective piece should be a minimum of 750 words each, not exceeding 1500 words in total (plus or minus 10%). Use minimum of 9 references from credible sources for this assessment. Both written works should be submitted as one, single document.
Part A: Reflective Piece (750 words)
The impact of leadership style often manifests in the quality of relationships which a leader builds over time with others, in particular subordinates and peers. Drawing from two situations from your own experience as a leader (or from a leader you have witnessed), discuss one example where you (or a leader) demonstrated a high level of emotional intelligence, and in another example where you (or a leader) allo.
The red coler with file are very importantAttached Files Fixedv.docxhelen23456789
The red coler with file are very important
Attached Files:
FixedvsGrowth.pdf
(
384.466 KB
)
Read the short (seriously, it took me like 20 mins tops) article and do a write up (150 words minimum) on it.
Ideas for write up portion:
What kind of learner identity are you? Why do do you identify as that kind of learner? What is your relationship with struggling in school? How do you deal with struggle? When do you see things as a learning oportunity?
Points: 20 (which is a lot in this class)
(Do not forget I am international student, please)
http://www.nais.org/about/index.cfm?ItemNumber=145867
You can see these information on wibsite and I will put on this page because you have to read this a story.
SCHOOL MATTERS
Brainology
Transforming Students’ Motivation to Learn
Carol S. Dweck
Winter 2008
This is an exciting time for our brains. More and more research is showing that our brains change
constantly with learning and experience and that this takes place throughout our lives.
Does this have implications for students' motivation and learning? It certainly does. In my
research in collaboration with my graduate students, we have shown that what students believe about
their brains — whether they see their intelligence as something that's fixed or
Photoillustration: Michael Northrup
something that can grow and change — has profound effects on their motivation, learning, and school
achievement (Dweck, 2006). These different beliefs, or mindsets, create different psychological
worlds: one in which students are afraid of challenges and devastated by setbacks, and one in which
students relish challenges and are resilient in the face of setbacks.
How do these mindsets work? How are the mindsets communicated to students? And, most important, can
they be changed? As we answer these questions, you will understand why so many students do not
achieve to their potential, why so many bright students stop working when school becomes
challenging, and why stereotypes have such profound effects on students' achievement. You will also
learn how praise can have a negative effect on students' mindsets, harming their motivation to
learn.
Mindsets and Achievement
Many students believe that intelligence is fixed, that each person has a certain amount and that's
that. We call this a fixed mindset, and, as you will see, students with this mindset worry about
how much of this fixed intelligence they possess. A fixed mindset makes challenges threatening for
students (because they believe that their fixed ability may not be up to the task) and it makes
mistakes and failures demoralizing (because they believe that such setbacks reflect badly on their
level of fixed intelligence).
It is the belief that intelligence can be developed that opens students to a love of learning, a
belief in the power of effort and constructive, determined reactions to setbacks.
Other students believe that intelligence is something that can be cultivated through e.
The References MUST BE THIS BOOK AND WHATEVER SOURCE YOU WANT TO SI.docxhelen23456789
The References: MUST BE THIS BOOK AND WHATEVER SOURCE YOU WANT TO SITE.
Harvey, C. and Allard, J. (2014) Understanding and Managing Diversity (6th ed.) NJ: Pearson- Prentice Hall. ISBN: 9780133548198
MUST BE ATLEAST 300 WORDS WITH TWO CITED SOURCES EACH!
1. Discussion Board Three
Individual Perspectives on Diversity II
Briefly summarize chap 8 and discuss how you can develop the skills needed to increase your Emotional Intelligence.
2. Discussion Board Four
Group Perspectives on Diversity I
How do gender differences impact how we communicate in the workplace? What strategies can be employed to improve communication? Discuss one example of intentional information use in the context of your organization (could be something that you witnessed or something that happened to you) (focus on Ch. 20, 27-28)
3. Discussion Board Five
Group Perspectives on Diversity II
Identify a belief, value or attitude of yours that you can attribute to your religion and examine its impact on your work and career. Discuss how your religion could affect your role and performance in a multicultural workplace.
BOOK INFO BELOW!
The Chapter 8
on The Emotional Connection of Distinguishing Differences and Conflict
Carole G. Parker
In recent years, diversity in organizations has been an exciting, stimulating, frustrating, and intriguing topic. Some organizations continue to struggle for diversity whereas others have a fully integrated diverse workforce. The challenge to increase and manage diversity continues to be critical to organizational goals, particularly as more organizations, large and small, transact business internationally. Some organizations work to appreciate diversity and value differences, whereas others continue to discount differences and diversity. Smart managers today realize the importance of balance in work groups. Attempts to incorporate differences in age, gender, race, culture, sexual preference, and styles of being in their organizations to capitalize on the incredible potential diversity offers are occurring. Managing differences requires energy, commitment, tolerance, and finally, appreciation among all parties involved. Differences among people are not inherently good or bad; there is no one “right” way to deal with differences. Learning to manage and ultimately appreciate differences requires learning, emotional growth, and stretching the boundaries of all participants. Although differences can be challenging, they also lead to very important benefits, both to individuals, groups and organizations.
How Differences Are Often Managed
What action and factors must be uppermost in selecting the most appropriate approach to addressing differences? Often avoidance or repression is used to manage differences. The avoidance of differences often takes the form of associating with individuals of similar backgrounds, experiences, beliefs, and values. This strategy enables an environment of mutual support and predictability. Those.
The Reason Why Excelsior College Is My ChoiceEnglish 101Runn.docxhelen23456789
The Reason Why Excelsior College Is My Choice
English 101
Running head: THE REASON WHY EXCELSIOR 1
THE REASON WHY EXCELSIOR COLLEGE IS MY CHOICE 3
March 2, 2019
The Reason Why Excelsior College is my Choice
Am I too old to go back to college? This is a question I have posed to myself and my family for almost a year while I researched colleges to attend. I knew I wanted to go back to school so that I could get an associate’s degree in nursing. I already went the vocational school route in order to gain my licensed practical nursing diploma and took my state boards to obtain my license so I need the associate’s degree in order to take the NYS Boards to obtain my registered nursing license. I have to have both hands-on nursing classes as well as regular classes such as English and Science along with a few others. I knew I really did not want to go to a regular school if it could be helped because I like the ability to be similar to your peers in an online environment as you really don’t know the ages of your classmates. It does not matter if they are young or old; they just want to do the same thing as you: learn.
The search was on to either find an online school that had both types of classes I would need or to take my regular classes in an online setting and then transfer to a brick and mortar school to take my hands on classes. Well I narrowed my choice to Excelsior College because they had a nursing degree program but I was still not sure if I wanted to fully take all of my courses here. After researching further, I realized that I would not be able to obtain financial aid for my nursing degree if I took it solely through Excelsior. I did find a local school around me that would allow me to take just my hands-on classes through them. I would just need to make sure to take all the necessary regular classes first here at Excelsior.
Well, I had made my decision on how I would proceed so I filled out the online application and paid my non-refundable application fee. I waited with baited breath to find out if I would be accepted or not because this is going to determine my immediate future and the future of my family. I breathed such a sigh of relief when I received the welcome email. After speaking with my admissions counselor and the registers office in great lengths, I realized I would have to matriculate into the liberal arts program in order to gain financial aid. I got a list of the courses I needed to take to be able to transfer into the local school and waited to hear back from my academic advisor who was still being assigned to me.
After a telephone call with my academic advisor, it was determined that I was only allowed to take 9 credits for the Spring semester so I ended up taking this fifteen week English course, PSY 101, and PSY 235 in the Spring II section because I did not have any prior degree credits. The ability to learn quickly and have constant support from my family, my fellow classmates, an.
The recovery phase of any disaster event creates a huge requirement .docxhelen23456789
The recovery phase of any disaster event creates a huge requirement for manpower for cleanup, repair, and restoration. Traditionally, a sizable segment of the manpower pool is provided by volunteers from NGOs, churches, community organizations, schools, etc. What are the advantages to using volunteers? What are the disadvantages?
.
The reevaluation process in special education is addressed at least .docxhelen23456789
The reevaluation process in special education is addressed at least every three years to determine whether the student continues to need special education and related services due to their diagnosed disability. Teachers working with students with disabilities should be aware of the rationale and purpose for the reevaluation. There are also legal provisions that must be followed to document the scope and sequence of the evaluation process. All teachers need to be aware of their role and responsibility to participate fully and be a collaborative team member with both staff and family.
Review the different reevaluation requirements under IDEA. Discuss the different types of reevaluations and associated process steps.
Design a 5 slide digital presentation appropriate for a schoolwide professional development opportunity on the topic of special education reevaluations for K‐8.
Within your presentation, address the following:
Triennial reevaluations: Use of assessments to support continued eligibility, required consent, participants, and scope of the evaluation.
Support your presentation with a scholarly resource.
Rubic: Triennial Revaluations
Thoroughly and insightfully summarizes triennial evaluations regarding use of assessments to support continued eligibility, required consent, participants, and scope of the evaluation.
.
The recruitment of employees is a critical part of the HR function a.docxhelen23456789
The recruitment of employees is a critical part of the HR function and it is also been a function that has changed vastly for many organizations.
Research Recruitment of employees and explain/identify:
Strategic recruiting regarding EEO, Diversity, Gender-Neutral, and Generational Differences.
How technology and social media affect recruiting for employers and candidates.
Advantages and/or disadvantages of internal and external recruiting methods.
Paper Requirements:
Write a 3-4 page double-spaced, 12 font, and APA formatted paper that addresses the items above.
Do not use first person. This paper isn't your opinion. Your paper is guided by your research.
The 3-4 pages is counted from the introduction through the conclusion. It does not include the title page or reference page.
Include a title page properly formatted in APA.
You Do NOT need to include an abstract
Make sure to include an Introduction to your paper. Y
our introduction needs to include a strong preview sentence.
Create
headings
in the body of the paper (between the Introduction and Conclusion) that are named based on the content in that section of the paper. For example, your headings could be the trends you identified. Please review the
APA Heading Format Guidelines (Links to an external site.)Links to an external site. (Links to an external site.)
in order to develop a good understanding of how to format the headings in your paper.
Include a Reference page. You must include a minimum of 5 references (textbook and 4 scholarly peer-reviewed journal articles from Welder Library E-Resources).
Please refer to the rubric for the grading requirements.
Your submission will go through turnitin. Turnitin evaluates the originality score of your paper. Your turnitin score should be 25% or less.
.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
The quiz has two portions Multiple Choice (8 problems, 32 p.docx
1. The quiz has two portions:
Multiple Choice
(8 problems, 32 points).
Show work/explanation as appropriate
.
Short Answer
(3 problems, 38 points)
Show work
.
MULTIPLE CHOICE
. Choose the one alternative that best completes the statement or
answers the question.
(
4 points
) If the P-value of a hypothesis test comparing two means was
0.25, what can you conclude? (Select all that apply):
A. You can accept the null hypothesis
B. There was a significant difference between the means
C. You failed to reject the null hypothesis
D. There did not appear to be significant difference between the
means
2. (
4 points
) Imagine a researcher wanted to test the effect of the new drug
on reducing blood pressure. In this study, there were 50
participants. The researcher measured the participants’ blood
pressure before and after the drug intake. If we want to compare
the mean blood pressure from the two time periods with a two-
tailed t test, how many degrees of freedom are there?
A. 49
B. 50
C. 99
D. 100
(
4 points
) When sample size increases, ____
A. Power increases a great degree at first, reaches its peak, and
then slowly decreases
3. B. Power decreases a great degree at first, reaches its lowest
point, and then slowly increases
C. Power increases a great degree at first, and then increases
slowly
D. Power decreases a great degree at first, and then decreases
slowly
(
4 points
) α=0.05 for a two-tailed test. Assume that the data has a normal
distribution and the number of observations is greater than fifty.
Find the critical z value used to test a null hypothesis.
A. ±1.768
B. ±1.764
C. ±1.96
D. ±2.575
4. (
4 points
) In a sample of 47 adults selected randomly from one town, it
is found that 9 of them have been exposed to a particular strain
of the flu. Find the P-value for a test of the claim that the
proportion of all adults in the town that have been exposed to
this strain of the flu is 8%.
A. 0.0024
B. 0.0524
C. 0.0228
D. 0.0048
(
4 points
) For a simple random sample, the size is n=17, σ is not known,
and the original population is normally distributed. Determine
whether the give conditions justify testing a claim about a
5. population mean µ.
A. Yes
B. No
(
4 points
) A medical researcher claims that 20% of children suffer from
a certain disorder. Indentify the type I error for the test.
A. Fail to reject the claim that the percentage of children who
suffer from the disorder is equal to 20% when the percentage is
actually 20%.
B. Reject the claim that the percentage of children who suffer
from the disorder is equal to 20% when that percentage is
actually 20%.
C. Fail to reject the claim that the percentage of children who
suffer from the disorder is equal to 20% when that percentage is
actually different from 20%.
D.Reject the claim that the percentage of children who suffer
from the disorder is different from 20% when that percentage
really is different from 20%.
6. (
4 points
) The duration of telephone calls directed by a local telephone
company: σ=4.2 minutes, n=500, 97% confidence. Use the
confidence level and sample data to find the margin of error E.
A. 0.018 min
B. 0.008 min
C. 0.408 min
D. 0.087 min
SHORT ANSWER
. Write the word or phrase that best completes each statement or
answers the question.
Express percents as decimals. Round dollar amounts to the
nearest cent.
7. (
10 points
) List below are the ages in years of randomly selected race car
drivers. Use a 0.05 significant level to test the claim that the
mean age of all race car drivers is greater than 30 years.
32
32
33
33
41
29
38
32
33
23
27
45
52
29
25
8. 10.
(
10 points
) It is commonly accepted that the mean temperature of human
is 98.6
o
F. Yours truly has nothing better to do but measured the
temperatures of 26 colleagues 1 to 4 times daily to get a total of
123 measurements. The collected data yielded a sample mean of
98.4
o
F and a sample standard deviation of 0.7
o
F. Is the mean temperature of his colleagues less than 98.6
o
F at the 0.01 significance level? Justify your answer with the
proper statistics.
11. (
18 points
)
The recommended daily allowance
(
RDA
)
of cobalamine
(
Vitamin B
12
)
for growing teens is 2.4 µg
(
micrograms
9. )
. It is generally believed that growing teens are getting less than
the RDA of 2.4 µg of cobalamine daily.
A not-to-be-named Pharmaceutical
(
ntbnP
)
peddles dietary supplements around the country. It is claimed
by ntbnP representatives that by taking their vitamin
supplement, teens will have the RDA of cobalamine. FDA is
going to take on ntbnP to show that the supplement comes short
of providing teens with the recommended RDA.
FDA managed to collect with a 24-hour period blood sample of
10 randomly selected teens around the country. The amounts of
cobalamine
(
in µg
)
determined in these 10 randomly selected teens are given as
follow:
1.85 2.35 1.87 1.90 1.37 2.35 2.55 2.28 1.95 2.49
Based on their national experience, FDA assumes that the the
population standard deviation of cobalamine in teens to be 0.56
µg.
Now, you are asked to weigh in on the dispute between FDA
and ntbnP.
a. (
3 points
) Given the above information, what kind of hypothesis test will
you conduct?
10. z
-test,
t
-test,
χ
2
-test,
F
-test, or Ω-test? Please explain.
b. (
3 points
) What will be the null hypothesis, the alternative hypothesis,
and, hence, the "
tailedness
" of the test (left-tailed, right-tailed, or two-tailed)?
c. (
3 points
) What is be the corresponding test statistics?
d. (
3 points
) What is the corresponding
p
-value of the hypothesis test?
e. (
3 points
) What kind of conclusion can you draw from the hypothesis
11. test you have just performed? Of course, representatives of
ntbnP
would like to have the conclusion skewed to their advantage.
And so would the officials from FDA. What would you do if
you are representing
ntbnP
? But, if you are representing
FDA
, how would you present your argument?
f. (
3 points
) But, wait. What if
FDA
actually does not know the population standard deviation in
this case, would you conduct your hypothesis test different?
Just in case that you are going to perform the hypothesis
different, what would you do instead?