Mathematics, 06.02.2021 01:20 rachel693

A store manager designs a new accounting system that will be cost effective if the mean monthly charge account balance is more than $50. A sample of 100 accounts is randomly selected. The sample mean balance is $56 and the sample standard deviation is $25.a. Find the t-statistic for a hypothesis test that is designed to answer the question.

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A store manager designs a new accounting system that will be cost effective if the mean monthly char...