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To find a 99% confidence intervals for the population mean.

Denise is a professional swimmer who trains, in part, by running. She would like to estimate the average number of miles in each week. For a random sample of 18 weeks, the mean is 18.5 miles with standard deviation equal to 3.2 miles. Find out a 99 percent confidence interval for the population mean number of weekly miles.

Statistics and Probability, Statistics

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