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Confidence interval for the population mean

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Reference no: EM132027093

In a random sample of 18 ?people, the mean commute time to work was 34.5 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 μ. Also what is the margin of error of μ?? Interpret the results.

Reference no: EM132027093

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