In a random sample of 25 people, the mean commute time to work was 30.4 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a tdistribution to construct a 99 confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results.
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In a random sample of 25 people, the mean commute time to work was 30.4 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a tdistribution to construct a 99 confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results.
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