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In a random sample of 23 ?people, the mean commute time to work was 33.8 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a? t-distribution to construct a 90?% confidence interval for the population mean mμ. What is the margin of error of mμ?? Interpret the results.

The confidence interval for the population mean mμ is left parenthesis nothing comma nothing right parenthesis. ?(Round to one decimal place as? needed.)

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