Suppose that the housework study referred to in Exercise 19.10 was repeated with some changes. In the
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Suppose that the housework study referred to in Exercise 19.10 was repeated with some changes. In the revised experiment, 60 women were asked last year and again this year how many hours of housework they perform weekly. Can we conclude at the 1% significance level that women as a group are doing less housework now than last year?
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