a. A sample of middle-class families reported an average of 7.3 visits per year with close kin, while a sample of working-class families averaged 8.2 visits. Is the difference significant?
Sample 1 (Middle Class) |
Sample 2 (Working Class) |
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b. The middle-class families averaged 2.3 phone calls and 8.7 e-mail messages per month with close kin. The working-class families averaged 2.7 calls and 5.7 e-mail messages per month. Are these differences significant?
Phone Calls per Month | |
Sample 1 (Middle Class) |
Sample 2 (Working Class) |
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E-Mail Messages per Month | |
Sample 1 (Middle Class) |
Sample 2 (Working Class) |
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Chapter 8 Solutions
Essentials of Statistics: A Tool for Social Research - With SPSS DVD
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