Question: 13.6. For the survey in the previous exercise, the sample size was 1417. (a) Test the null hypothesis that sex has no effect on the

13.6. For the survey in the previous exercise, the sample size was 1417.

(a) Test the null hypothesis that sex has no effect on the response, controlling for the other predictors. Interpret.

(b) Construct a 95% confidence interval for the sex effect, controlling for the other predictors.

Interpret.

(c) Marital status has three estimates. Dividing the coefficient of the divorced dummy variable by its standard error yields a t statistic.

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