Confidence interval for the population mean

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In a random sample of 22people, the mean commute time to work was 33.1minutes and the standard deviation was 7.3minutes. Assume the population is normally distributed and use a t-distribution to construct a 99%confidence interval for the population mean mu. What is the margin of error of mu?Interpret the results.

The confidence interval for the population mean mu is () ()

Reference no: EM131180797

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