MTH 233 (Statistics Hypothesis Testing - entirecourse.com)

MTH 233 Week 1 DQ 1 (UOP Course)
What is the importance of statistics in your work or schooling? How do you use statistics? How are you
a statistic?
http://entirecourse.com/course/MTH-233-Statistics-Hypothesis-Testing/MTH-233-Week-1-DQ-1-UOP-Course
What is the difference between a sample statistic and a population parameter? Provide an example of
each.
What level of measurement is your year in college (freshman, sophomore, junior, senior)? Your
political affiliation? Explain.
What is the purpose of using a histogram? Provide two new examples of when one might be used.
MTH 233 Week 1 Individual Assignment Statistical Symbols and Definitions Worksheet (UOP Course)
Statistical Symbols and Definitions
Part 1: Match the letter of the definition on the right to the appropriate symbol on the left.
Symbols
1. S
2. m
3. s
4. n
5. N
6. x
7. s2
8. H0
9. H1
10. z
Definitions
a. Null hypothesis
b. Summation
c. Population mean
d. Population variance
e. Population standard deviation
f. Alternate hypothesis
g. Sample size
h. Population size
i. Standard score
j. Sample mean
Part 2: Match the letter of the term on the right to the definition of that term on the left.

Definitions
1. ____ Midpoint in the distribution of numbers
2. ____ The normal probability distribution with μ = 0 and σ = 1
3. ____ The status quo.
4. ____The difference between the largest and smallest score in a distribution.
5. ____The arithmetic average
6. ____The sum of squared deviations about the sample mean divided by n – 1
7. ____The most frequently occurring value in a set of numbers
8. ____Chi-square, a nonparametric hypothesis test
9. ____The probability that z score is greater than a
10. ____A claim that you are trying to find evidence to support
Terms
a. Arithmetic mean
b. Mode
c. Sample variance
d. Null hypothesis
e. Median
f. Alternative hypothesis
g. P(z > a)
h. Range
i. Standard normal distribution
j. χ2
http://entirecourse.com/course/MTH-233-Statistics-Hypothesis-Testing/MTH-233-Week-1-Statistical-
Symbols-and-Definitions-Worksheet
When might the reported median of data be more appropriate than the mean of data? What is your
biggest challenge in deciding which is more appropriate?
What is the purpose of finding the mode of data? Provide an example of when the mode is more
appropriate than the mean or median of data.
How meaningful is the range of a data set?
When is it more appropriate to use the standard deviation of data rather than the variance of data? Is
one a better measure of dispersion than the other? Explain.

What are the five steps used in hypothesis testing? How do you decide on an alpha significance level?
What is the difference between a critical value and a test statistic? How do you decide which test
statistic to use?
When is it appropriate to use a one-tailed test versus a two-tailed test? Does direction of the test affect
statistical significance? Explain
What are degrees of freedom? Illustrate with one new example.
MTH 233 Week 3 Team Assignment Project Progress (Paper 1) (UOP Course)
http://entirecourse.com/course/MTH-233-Statistics-Hypothesis-Testing/MTH-233-Week-3-Team-
Assignment-Project-Progress-Paper-1-UOP-Course
In two-sample testing, when is it appropriate to use a t test versus a z test?
What are the criteria for using a t test for independent and dependent samples?
What are the assumptions in ANOVA? Which assumption is most important? Why?
What are the criteria for using one-way ANOVA versus two-way ANOVA? Which criteria do you find
most difficult to identify? Why?
MTH 233 Week 4 Team Assignment Hypothesis Testing Paper and Presentation (UOP Course)
http://entirecourse.com/course/MTH-233-Statistics-Hypothesis-Testing/MTH-233-Week-4-Team-
Assignment-Hypothesis-Testing-Paper-and-Presentation-UOP-Course

What is the difference between a parametric and nonparametric test? What are the advantages and
disadvantages of a parametric test and of a nonparametric test?
In what scenario might you use a chi-square test? What criteria do you need to use a chi-square test?
What is the difference between observed and expected frequencies? Illustrate with a new example.

MTH 233 (Statistics Hypothesis Testing - entirecourse.com)

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