Advanced Placement (AP), 04.03.2021 20:40, katherine3084

In 1960 sociologists studied a random sample of 1,018 families that consisted of a husband, a wife, and at least one child. Of those families, 5.8 percent reported that the wife was the primary wage earner of the family. In 2011 the study was replicated with a random sample of 1,013 families that consisted of a husband, a wife, and at least one child. Of those families, 22.3 percent reported that
the wife was the primary wage earner of the family. Which of the following represents a 99 percent confidence interval for the difference between the proportions of families that consisted of a
husband, a wife, and at least one child from 1960 to 2011 that would have reported the wife as the primary wage earner?

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In 1960 sociologists studied a random sample of 1,018 families that consisted of a husband, a wife,...