In a random sample of 25 people, the mean commute time to work was 32.6...
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In a random sample of 25 people, the mean commute time to work was 32.6 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean . What is the margin of error of ? Interpret the results.
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