Mathematics, 06.06.2020 00:00 leylaanddade

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 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 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 margin of error?

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Another question on Mathematics

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 margin of error?