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. Medical researchers reviewing the risk of death for elderly patients taking dementia drugs 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.   Dementia Drugs Placebo Number of patients 500 450 Total deaths 23 12   Find the z test statistic. Give your answer with two decimals, e.g., 9.87 . (Points : 0.5) Question 3 of 10Ophthalmologists studying the treatment of using an infrared laser procedure in ten patients with vision loss caused by dry age-related macular degeneration (AMD) found the following data on visual acuity (VA) before and after the procedure. Assume a .05 significance level to test the claim that there is a difference between the number of VA lines that can be read by individuals before and after the procedure. 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 VA Lines Read Before 3 4 2 4 5 3 4 5 3 3 Laser Procedure VA Lines Read After 4 4 5 5 6 3 7 6 3 5 Laser Procedure   Construct a 95% confidence interval estimate of the mean difference between the before and after number of visual acuity lines read. Give your answer with two decimals, e.g., (12.34,56.78) (Points : 0.5) Question 4 of 10Given: There is a significant linear correlation between the numerical abundance of floating insects in a certain river and the number of insect-eating fish in the river. Identify the choice that contains a conclusion with a common correlation error. (Points : 1)        Conclusion: r results in a value close to 1        Conclusion: an increase in floating insects is related to an increase in insect-eating fish        Conclusion: r results in a value close to -1        Conclusion: an decrease in floating insects causes a decrease in insect-eating fish Use a .05 significance level and the observed frequencies of 70 Neonatal deaths to test the claim that number of neonatal deaths on each day of the week is equally likely.   Mon Tues Wed Thurs Fri Sat Sun 10 9 5 8 15 12 11   Determine the value of the χ2 test statistic. Give your answer to two decimals, e.g., 12.34 . (Points : 0.5) ____________________________________________________________________________________ Using a .01 significance level, test the claim that the proportions of people who favor/oppose pro-choice on the abortion issue are the same fo ...

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.
Medical researchers reviewing the risk of death for elderly
patients taking dementia drugs 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.
Dementia Drugs
Placebo
Number of patients
500
450
Total deaths
23
12
Find the z test statistic. Give your answer with two decimals,
e.g., 9.87 . (Points : 0.5)
Question 3 of 10Ophthalmologists studying the treatment of
using an infrared laser procedure in ten patients with vision loss
caused by dry age-related macular degeneration (AMD) found
the following data on visual acuity (VA) before and after the
procedure. Assume a .05 significance level to test the claim that

2. there is a difference between the number of VA lines that can be
read by individuals before and after the procedure. 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
VA Lines Read Before
3
4
2
4
5
3
4
5
3
3
Laser Procedure

3. VA Lines Read After
4
4
5
5
6
3
7
6
3
5
Laser Procedure
Construct a 95% confidence interval estimate of the mean
difference between the before and after number of visual acuity
lines read. Give your answer with two decimals, e.g.,
(12.34,56.78) (Points : 0.5)
Question 4 of 10Given: There is a significant linear correlation

4. between the numerical abundance of floating insects in a certain
river and the number of insect-eating fish in the river. Identify
the choice that contains a conclusion with a common correlation
error. (Points : 1)
Conclusion: r results in a value close to 1
Conclusion: an increase in floating insects is related to an
increase in insect-eating fish
Conclusion: r results in a value close to -1
Conclusion: an decrease in floating insects causes a
decrease in insect-eating fish
Use a .05 significance level and the observed frequencies of 70
Neonatal deaths to test the claim that number of neonatal deaths
on each day of the week is equally likely.
Mon
Tues
Wed
Thurs
Fri
Sat
Sun
10
9
5
8
15
12
11
Determine the value of the χ2 test statistic. Give your answer to
two decimals, e.g., 12.34 . (Points : 0.5)
_____________________________________________________

5. _______________________________
Using a .01 significance level, test the claim that the
proportions of people who favor/oppose pro-choice on the
abortion issue are the same for the males and females.
Gender
Male
Female
Favor Pro-Choice
65
120
Oppose Pro-Choice
42
38
Do you reject the null hypothesis, at the .01 significance level?
Enter Y for yes (reject), N for no (fail to reject). (Points : 0.5)
The table represents results from an experiment with patients
afflicted with eczema on both arms. Each patient was treated
with an immune modulator cream on one arm and a topical
steroid cream on the other arm. Using a .05 significance level,
apply McNemar's test to test the following claim: The
proportion of patients with no cure on the immune modulator
treated arm and a cure on the topical steroid treated arm is the
same as the proportion of patients with a cure on the immune
modulator treated arm and no cure on the topical steroid treated
arm.

6. Immune Modulator Cream
Cure
No Cure
Topical Steroid
Cure
25
11
Cream
No Cure
42
22
Do you reject the null hypothesis, at the .05 significance level?
Enter Y for yes (reject), N for no (fail to reject). (Points : 0.5)
Geneticists studying carriers of genetic diseases followed
subjects subdivided by race. Researchers randomly selected
seven patients per race who had been identified as carrying a
certain gene for a genetic disease; these patients were followed
to determine the number of their siblings who also carried the
gene for the genetic disease. Use a One-Way ANOVA at a .05
significance level to test the claim that the means from the
different races are not all the same.
Caucasian
African-American
Other
2
0
0
3

7. 0
1
3
1
2
3
2
2
4
2
2
5
2
3
5
4
4
Do you reject the null hypothesis, at the .05 significance level?
Enter Y for yes (reject), N for no (fail to reject). (Points : 0.5)
Question 9 of 10Assuming calculations for a One-Way ANOVA
with equal sample sizes, if each data value in one of the samples
is increased by a fixed amount, then any change in the F test
statistic and the P-value is attributable only to the change in the
sample variances. (Points : 1)
True
False

8. Use the following technology display from a Two-Way ANOVA
to answer this question. Biologists studying habitat use in
Lepidopteran moths measured the number of savannah moths
found at three randomly selected prairie sites with two potential
habitat interferences (expansion of row crops and grazing). Use
a .05 significance level.
Source
Df
SS
MS
F
P
Site
2
.1905
.0952
.0381
.9627
Habitat
1
304.0238
304.0238
121.6095
.0000
Site*Habitat
2
.1905
.0952
.0381
.9627
Do you reject the null hypothesis anbout the habitat effect, at

9. the .05 significance level? Enter Y for yes (reject), N for no
(fail to reject). (Points : 0.5)
Assignment Brief
The strength of a country’s economy can be determined through
careful examination of macroeconomic
indicators such as real GDP, real GDP growth rate, real GDP
per capita, unemployment rate and inflation
rate. In your essay, analyse the economic performance of ONE
(1) country, over the last decade (from
2005 to 2014), using data on the macroeconomic indicators;
argue whether you think the performance
is strong or weak.
Your analysis should include an in-depth discussion on the
performance of the economy and provide
explanations for economic results as revealed by the
macroeconomic indicators; where appropriate, you
should also explain how the policies of the government aim to
achieve full employment, stable price
and/or economic growth. Support your evaluation with
researched evidence.

10. More marks will be awarded for reports which provide more
detailed discussion and in-depth analysis.
The essay shall be about 2,000 words (+/- 10%).
Assignment Format
The essay should be presented in the following format. Sections
Introduction
Production output performance analysis
analysis
fine and explain how each indicator above measures
performance of the economy
achieve the production output
performance
Labour market analysis
unemployment in an economy

11. chosen economy
explain Government’s measures adopted to
achieve full employment
Price level analysis
) of inflation in the chosen
economy
stable price
Conclusion
Assignment Style
All sources referred to in your essay, including any diagrams,
must be referenced to in-text and be
included in a full reference list at the end of the assignment,
according to the APA system of referencing
-written.

12. style.