31. Working Women According to a survey in Advertising Age, working men reported doing 54 minutes of household chores a day, while working women reported tackling 72 minutes daily. But when examined more closely, Millennial men reported doing just as many household chores as the average working women, 72 minutes, compared to an average of 54 minutes among both Boomer men and Gen Xers.8 The information that follows is adapted from these data and is based on random samples of 1136 men and 795 women

a. Construct a 95% confidence interval for the average time all men spend doing household chores.

b. Construct a 95% confidence interval for the average time women spend doing household chores.

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Mean Standard Deviation n All Women All Men Millennial 22 72 10.4 795 54 12.7 1136 72 9.2 345 Boomers 54 13.9 475 Gen Xers 54 10.5 316