Advanced Placement (AP), 30.03.2021 23:40 chuckmoney1198

Suppose that researchers at a grocery store chain want to see if the mean receipt amount for customers at their flagship store is greater than the mean receipt amount of $45.25 across all of their stores. To test this, the researchers randomly selected 95 customers and conducted a one-sample, one-tailed ‑test of the mean using a significance level of =0.05.

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Suppose that researchers at a grocery store chain want to see if the mean receipt amount for custome...