Mathematics, 19.12.2019 07:31 chevy1911
Asupervisor records the repair cost for 11 randomly selected refrigerators. a sample mean of $82.43 and standard deviation of $13.96 are subsequently computed. determine the 99% confidence interval for the mean repair cost for the refrigerators. assume the population is approximately normal. step 1 of 2 : find the critical value that should be used in constructing the confidence interval. round your answer to three decimal places.
Answers: 3
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Asupervisor records the repair cost for 11 randomly selected refrigerators. a sample mean of $82.43...
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