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Do consumers spend more on a trip to Walmart or Target? Suppose researchers in- terested...

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Do consumers spend more on a trip to Walmart or Target? Suppose researchers in- terested in this question collected a systematic sample from 85 Walmart customers and 80 Target customers by asking customers for their purchase amount as they left the stores. The data collected are summarized in the table below.The researchers decide to test the hypothesis that the means are equal. The degrees of freedom formula gives 162.75 df. Test the null hypothesis at a = 0.05

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