Mathematics, 03.07.2020 23:01 jimmymurray29

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. 36 times out of 40 these results were considered accurate to within 3.5%. What is the margin of error?

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A grocery store chain has been tracking data on the number of shoppers that use coupons. The data sh...