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MTH 233 ALL DQS AND ASSIGNMENTS

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MTH 233 ALL DQS AND ASSIGNMENTS

MTH 233 Week 1 Individual Assignment Statistical Symbols and Definitions Worksheet

Complete the University Material: Statistical Symbols and Definitions worksheet located on your student

website.

MTH 233 Week 1 DQs 1 , 2 , 3 and 4

MTH 233 Week 1 DQ 1

What is the importance of statistics in your work or schooling? How do you use statistics? How are you a

statistic?

MTH 233 Week 1 DQ 2

What is the difference between a sample statistic and a population parameter? Provide an example of

each.

MTH 233 Week 1 DQ 3

What level of measurement is your year in college (freshman, sophomore, junior, senior)? Your political

affiliation? Explain.

MTH 233 Week 1 DQ 4

What is the purpose of using a histogram? Provide two new examples of when one might be used.

MTH 233 Week 2 DQ 1 ,2 , 3 and 4

MTH 233 Week 2 DQ 1

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?

MTH 233 Week 2 DQ 2

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.

MTH 233 Week 2 DQ 3

How meaningful is the range of a data set?

MTH 233 Week 2 DQ 4

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.

MTH 233 Week 3 Team Assignment Project Progress (2 Different Papers)

Post your Learning Team Charter in the Learning Team Forum.

MTH 233 Week 3 DQs 1 ,2 ,3 and 4

MTH 233 Week 3 DQ 1

What are the five steps used in hypothesis testing? How do you decide on an alpha significance level?

MTH 233 Week 3 DQ 2

What is the difference between a critical value and a test statistic? How do you decide which test statistic

to use?

MTH 233 Week 3 DQ 3

When is it appropriate to use a one-tailed test versus a two-tailed test? Does direction of the test affect

statistical significance? Explain

MTH 233 Week 3 DQ 4

What are degrees of freedom? Illustrate with one new example

MTH 233 Week 4 Team Assignment Hypothesis Testing Paper and Presentation (Two Projects)

Select a research issue, problem, or opportunity facing a Learning Team member’s organization that

could benefit from hypothesis testing.

Write a 1,050- to 1,750-word paper describing a hypothesis test to perform on that data using a one or

two-sample z test or a one or two sample t test. You may use one- or two-tailed tests. You may use

Microsoft® Excel® to perform your hypothesis test.

Formulate a hypothesis statement and perform the five-step hypothesis testing procedure on the

data identified above.

Describe the results of the tests.

Interpret the results of your hypothesis test, state any limitations of the analysis, and describe the

significance of the results to the organization. Be sure to attach the results of the hypothesis

test output created in Microsoft® Excel® to your paper.

Prepare a 10- to 12-slide Microsoft® PowerPoint® presentation that could be used to persuade an

audience to a particular course of action around your chosen issue, problem, or opportunity, based on

Format your paper and presentation consistent with APA guidelines.

For Local Campus students, these are 5-10 minute oral presentations accompanied by

PowerPoint® presentations.

For Online and Directed Study students, these are PowerPoint® presentations with detailed speaker

notes.

MTH 233 Week 4 DQs 1 , 2 , 3 and 4

MTH 233 Week 4 DQ 1

In two-sample testing, when is it appropriate to use a t test versus a z test?

MTH 233 Week 4 DQ 2

What are the criteria for using a t test for independent and dependent samples?

MTH 233 Week 4 DQ 3

What are the assumptions in ANOVA? Which assumption is most important? Why?

MTH 233 Week 4 DQ 4

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 5 DQ 1 , 2 , 3 and 4

MTH 233 Week 5 DQ 1

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?

MTH 233 Week 5 DQ 2

In what scenario might you use a chi-square test? What criteria do you need to use a chi-square test?

MTH 233 Week 5 DQ 3

What is the difference between observed and expected frequencies? Illustrate with a new example.