In 2006, the General Social Survey asked about the number of hours a week spent on the World Wide Web (variable denoted WWWTIME). Some results are as follows:

a. Identify the response variable and explanatory variable. Indicate whether each variable is quantitative or categorical.
b. Report and interpret the 99% confidence interval shown for the difference between the population means for males and females.
c. Report and interpret the steps of the significance test comparing the two population means. Make a decision, using significance level 0.01.

Transcribed Image Text:

Mean StDe 9.9 SE Mean 0.285 0.216 Group Male Femal 498.6 Difference = mu(Male)-mu (Female) Estimate for difference: 1.3 99% CI for difference: (0.4, 2.2) T-Test of difference = 0 (vs not =): T-value = 3.62 P-value = 0.000 1196 6.2