You work in the corporate office for a nationwide convenience store franchise that operates nearly 10,000 stores. The per- store daily customer count ( i. e., the mean number of customers in a store in one day) has been steady, at 900, for some time. This increase seems like a substantial amount to you, but it also seems like a pretty small sample. Is there statistical evidence that reducing coffee prices is a good strategy for increasing the mean cus-tomer count? Be prepared to explain your conclusion.
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