In a random sample of 18 style="color:rgb(0,0,0);">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.
In a random sample of 18
style=”color:rgb(0,0,0);”>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.
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