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Mathematics 11 Online
OpenStudy (anonymous):

A grocery store chain has been tracking data on the number of shoppers that use coupons. The data shows that 71% of all shoppers use coupons. 18 times out of 20 these results were considered accurate to within 2.5%. What is the confidence interval? Question 23 options: .685 to .735 15.5 to 20.5 16 to 20 .6975 to .7225

OpenStudy (3redsons):

hold on

OpenStudy (anonymous):

k

OpenStudy (3redsons):

sorry man, to hard for me, good luck

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