Question

The owner of a drugstore is wondering whether he should target female customers in particular, because he believes that they tend to spend more than male customers. He asks the cashiers to keep track of the spending by a random sample of female customers, and a random sample of male customers, over several days. The purchases are shown in Exhibit 10.9.At the 2.5% level of significance, do the data provide evidence to support the drugstore owner's idea that female customers spend more than male customers?


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  • CreatedJuly 12, 2015
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