You are interested in finding a 90% confidence interval for the average commute that non-residential students...

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You are interested in finding a 90% confidence interval for theaverage commute that non-residential students have to theircollege. The data below show the number of commute miles for 11randomly selected non-residential college students. Round answersto 3 decimal places where possible. 25 21 26 6 25 14 26 24 7 10 14a. To compute the confidence interval use a distribution. b. With90% confidence the population mean commute for non-residentialcollege students is between and miles. c. If many groups of 11randomly selected non-residential college students are surveyed,then a different confidence interval would be produced from eachgroup. About percent of these confidence intervals will contain thetrue population mean number of commute miles and about percent willnot contain the true population mean number of commute miles.

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Solution Let X commute miles that nonresidential students have to their college Let mean and standard deviation of X be and Backup Theory 1001 Confidence Interval for population mean when is not known is Xbar MoE where MoE tn 1 2sn See Answer

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