Mathematics, 07.04.2020 17:03 sl1010

A consumer affairs investigator records the repair cost for 25 randomly selected VCRs. A sample mean of $58.35 and standard deviation of $13.14 are subsequently computed. Determine the 80% confidence interval for the mean repair cost for the VCRs. 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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