Find confidence interval for population mean number

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Denise is a professional swimmer who trains in part by running. she would like to estimate the average number of miles she runs in each wk. for a random sample of 20 wks the mean is 17.5 miles with standard deviation of 3.8 miles. find a 99% confidence interval for the population mean number of weekly miles denise runs.

Reference no: EM13121032

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