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A survey of the mean number of cents off that coupons give was conducted by randomly...

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Statistics

A survey of the mean number of cents off that coupons give wasconducted by randomly surveying one coupon per page from the couponsections of a recent Rockford newspaper. The following data werecollected: 20¢; 75¢; 50¢; 75¢; 30¢; 55¢; 10¢; 40¢; 30¢; 55¢; $1.50;40¢; 65¢; 40¢. Assume the underlying distribution is approximatelynormal. Construct a 95% confidence interval for the population meanworth of coupons. Find the lower limit of the confidence interval.Enter it rounded to the nearest cent (2 decimal places)

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Solutionxx22040075562550250075562530900553025101004016003090055302515225401600654225401600x5865x23112725The    See Answer
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