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In a recent year the Federal Communications Commission reported that the mean wait for repairs for Verizon customers was 36.5 hours In an effort to improve this service suppose that a new repair

In a recent year, the Federal Communications Commission reported that the mean wait for repairs for Verizon customers was 36.5 hours. In an effort to improve this service, suppose that a new repair service process was developed. This new process, used for a sample of 100 repairs, resulted in a sample mean of 34.5 hours and a sample standard deviation of 11.7 hours. a. Is there evidence that the population mean amount is less than 36.5 hours? (Use a 0.05 level of significance.) b. Determine the p-value and interpret its meaning.

Jun 20 2020 View more View Less

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