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Which is a correct interpretation of the confidence interval

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Reference no: EM132644920

The manager of a company wants to estimate the population mean time a caller is on hold. She took a random sample of calls and found a 90% confidence interval to be 5.8 < μ < 25.5 minutes.

Problem 1: Which of the following is a correct interpretation of this confidence interval?

a) If we took many random samples, 90% of the confidence intervals would be 5.8 < μ < 25.5 minutes.

b) There is a 90% probability that a person calling this company will have to wait on hold between 5.8 minutes and 25.5 minutes.

c) We can say with 90% confidence that the population mean waiting time a caller to this company is on hold lies between 5.8 minutes and 25.5 minutes.

d) 90% of the customers in this sample had to wait between an average of 5.8 minutes and 25.5 minutes.

e) Almost 100% of callers have to wait between 5.8 minutes and 25.5 minutes on hold.

Reference no: EM132644920

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