The study described in Exercise 10.16 also evaluated the weekly time spent in employment. This sample comprises men and women with a high level of labor force attachment. Software shows the results.
a. Does it seem plausible that employment has a normal distribution for each gender? Explain.
b. What effect does the answer to part a have on inference comparing population means? What assumptions are made for the inferences in this table?
c. Explain how to interpret the confidence interval.
d. Refer to part c. Do you think that the population means are equal? Explain.

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