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Confidence interval for the mean response time

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Reference no: EM132438177

Problem: An insurance claims department asserts that it responds to the customer claims within 15 days. A simple random sample of 40 claims show a sample means of 27 days for the response time. The standard deviation of this sample is 6 days.

Required:

Question 1: Construct a 95% confidence interval for the mean response time for all the claims.

Question 2: Does this interval contain the value 15 of days?

Reference no: EM132438177

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