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Ryan, Engineer

Category: Calculus and Above

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Experience: B.S. in Civil Engineering

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The manager of a fast-food restaurant wants to determine

Customer Question

the manager of a fast-food restaurant wants to determine whether the population mean waiting time to place an order has changes in the past month from its previous value of 3.7 minutes. A random sample of 64 orders shows a mean waiting time of 4.0 minutes. It is know from past experience that population standard deviation of waiting times is o=1.15minutes. Formulate and test the appropriate hypotheses using the p-value approach. What is the p-value for the test? show the research firm reject the null hypothesis at a=0.05? what conclusion should they make?

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