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?(1 point)

Responses

Yes, because the sample contains coupon users and non-users.
Yes, because the sample contains coupon users and non-users.

No, because the sample is not chosen randomly.
No, because the sample is not chosen randomly.

Yes, because the manager asked everyone who entered the meat aisle.
Yes, because the manager asked everyone who entered the meat aisle.

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

1 answer

The correct response is:

No, because the sample is not chosen randomly.

The store manager's survey only includes shoppers who enter the meat aisle, which may not be representative of all shoppers, as those who enter that aisle might have different behavior than those who shop in other areas of the store. This lack of random sampling limits the validity of any inferences drawn about the larger population of shoppers.