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Mathematics, 29.04.2021 17:30 moses638
A manager records the repair cost for 14 randomly selected dryers. A sample mean of $76.71 and standard deviation of $13.46 are subsequently computed. Determine the 90% confidence interval for the mean repair cost for the dryers. 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.
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A manager records the repair cost for 14 randomly selected dryers. A sample mean of $76.71 and stand...
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