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In a random sample of 28people, the mean commute time to work was 34.6minutes and the standard deviation was 7.2minutes. Assume the population is normally

In a random sample of 28people, the mean commute time to work was 34.6minutes and the standard deviation was 7.2minutes. Assume the population is normally distributed and use at-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 is

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