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9.5 Try It! Exercises
1. Using the t-test to Examine Gender Differences in Need for Affiliation
Use the procedures described in Section 9.2 to determine if male and female employees differ in their level of affiliation motivation. Thus, select
Affiliation Needs (naff) as the Test Variable (the dependent variable), and select Employee Gender (gender) as the Grouping Variable (the independent variable).
- Print your output file to submit to your instructor.
- Answer the following questions for the affiliation variable:
- What is the mean affiliation score and standard deviation for males?
- What is the mean affiliation score and standard deviation for females?
- Does this data violate the assumption of homogeneity of variance? Why?
- How many degrees of freedom are associated with this test?
- What is the value of the t-statistic?
- What is the significance level?
- Should you reject or fail to reject the null hypothesis of no difference in affiliation needs?
- Write an intepretation of the results along with your answers to the above questions to submit to your instructor. Follow the example in Section 9.3.
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