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Mathematics, 13.07.2021 22:00 helpmeplz33

A manager records the repair cost for 14 randomly selected dryers. A sample mean of $88.34 and standard deviation of $19.22 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 $88.34 and stand...
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