Mathematics, 08.02.2021 20:30 laylay120
2.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. b. Can the manager conclude that the new system will be cost-effective
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2.A store manager designs a new accounting system that will be cost effective if the mean monthly ch...
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