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QUESTION
In a random sample of 22 people, the mean commute time to work was 34.7 minutes and the standard deviation was 7.3 minutes.
In a random sample of 22 people, the mean commute time to work was 34.7 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 95% confidence interval for the population mean. What is the margin of error of the mean?
