Table 7.17 summarizes the number of hours spent in housework per week by gender, based on a

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Table 7.17 summarizes the number of hours spent in housework per week by gender, based on a recent GSS.

(a) Estimate the difference between the population means for women and men.

(b) Show that the estimated standard error of the sample difference is 0.81.

Interpret.

(c) Show that a 99% confidence interval for the difference is (2.3, 6.5). Interpret.

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