A store manager wants to know the percentage of shoppers who use coupons. He surveys everyone who enters the meat aisle. He finds that 60 percent of shoppers use coupons. Does the sampling method the store manager used support a valid inference?

Question

A store manager wants to know the percentage of shoppers who use coupons. He surveys everyone who enters the meat aisle. He finds that 60 percent of shoppers use coupons. Does the sampling method the store manager used support a valid inference?

a. no, because the sample is chosen randomly.

b. no, because not all people who enter the meat aisle use coupons

c. yes, because the sample contains coupons users and non-coupon users

d. yes, because the manage asked everyone who entered the meat aisle

Answer 1

c. yes, because the sample contains coupon users and non-coupon users

The survey method used by the store manager captures data from all types of shoppers entering the meat aisle, allowing for a representation of both coupon users and non-coupon users. This provides a more accurate reflection of the overall percentage of shoppers who use coupons.