A supervisor records the repair cost for 22

randomly selected VCRs. A sample mean of $75.50 and standard deviation of $18.07

are subsequently computed. Determine the 99%

confidence interval for the mean repair cost for the VCRs. Assume the population is approximately normal.

Step 2 of 2 : Construct the 99%

confidence interval. Round your answer to two decimal places.

asked by guest
on Nov 25, 2024 at 11:21 am



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