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QUESTION
A restaurant claims that, in average, its service time for an order is 5 minutes. A research company wants to test this claims to see whether it is...
A restaurant claims that, in average, its service time for an order is 5 minutes. A research company wants to test this claims to see whether it is true. Using a random sample of 45 orders, the company finds that the average service time is 6 minutes and the standard deviation is 2.5 minutes. The testing hypotheses are as follows:H0: Muy = 5H1: Muy # 59.
