Question: As operations supervisor at an online customer service center you
As operations supervisor at an online customer service center, you are concerned about the average time that elapses between the receipt of a customer question or complaint and the issuance of a response. The company prides itself on an average response time of no more than 36 hours. You take a sample of 10 recent customer inquiries and find that the average response time for the sample was 41 hours, with a sample standard of 8 hours. Determine whether this is enough sample evidence to reject a 36 hours null hypothesis at the 5% significance level. Assume that the population of response times is normal.
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