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Question 252:

Examine the data below showing the weights (in pounds) of randomly selected checked bags for an airline's flights on the same day. (a) At α = .05, is the mean weight of an (a) At α = .05, is the mean weight of an international bag greater? Show the hypotheses, decision rule, and test statistic. (b) At α = .05, is the variance greater for bags on an international flight? Show the hypotheses, decision rule, and test statistic.

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