RES 342 Week 2

Assignments from the E-Text

Prepare answers to the following assignments from the e-text, Applied Statistics in Business and Economics, by Doane and Seward:

Chapter 9 Chapter Exercises 9.10, 9.13, and 9.19

Note: Methods of computation could include the usage of Excel, SPSS, Lotus, SAS, MINITAB, or by hand computation.

Assignments from the E-Text

Prepare answers to the following assignments from the e-text, Applied Statistics in Business and Economics, by Doane and Seward:

Chapter 9 Chapter Exercises 9.54, 9.56, 9.62, and 9.64

Note: Methods of computation could include the usage of Excel, SPSS, Lotus, SAS, MINITAB, or by hand computation.

Learning Team One Sample Hypothesis Testing Paper

Using ratio or interval numerical data from one of the data sets available through the Data Sets link on your student website, develop one research question from which you will formulate a research hypothesis.

Prepare a 1,050-1,750-word paper describing the results of a hypothesis test of one population mean or population proportion. Be sure to include the following in your paper:

Formulate both a numerical and verbal hypothesis statement regarding your research issue.

Perform the five-step hypothesis test on data pertaining to your selection.

Describe the results of your test, and explain how the findings from this hypothesis testing can be used to answer your research question.

Be sure to include your raw data tables and the results of the computations of your Z-test or t-test in your paper, using both graphical and tabular methods of displaying data and results

Review the next Learning Team Assignment. You will need to obtain approval from your instructor regarding the business research issue, problem, or opportunity identified by your Learning Team.

Learning Team Two or More Sample Hypothesis Testing Paper

Using numerical data from one of the data sets available through the Data Sets link on your student website page, develop one business research question from which you will formulate a research hypothesis that will test two or more populations.

Prepare a 1,050-1,750-word paper describing the results of a hypothesis test of two populations or more than two populations (ANOVA). Be sure to include the following in your paper:

Formulate both a numerical and verbal hypothesis statement regarding your research issue.

Perform the five-step hypothesis test on data pertaining to your selection.

Describe the results of your test, and explain how the findings from this hypothesis testing can be used to answer your research question.

Be sure to include your raw data tables and the results of your computations in your paper, using both graphical and tabular methods of displaying data and results.

Individual Assignment: Quiz

Prepare to take a quiz on topics covered in previous weeks.

Discussion Questions

What is an independent sample? What is a related sample? When should researchers use different hypothesis tests for independent and related samples? Is one type of sample preferable over the other?

What is a Type I error? Explain how the cumulative Type I error affects your decision making. How is the two independent sample t-test different from ANOVA?

Describe the requirements that must be met before an ANOVA test can be used. Discuss what the researcher should do if one of these requirements is not met.

What is the role of probability in business research?

Discuss the differences between validity and reliability. Are the two concepts related or not. Support your answer with an example.