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)

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?(1 point)
Responses

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

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.

GPT-4o mini · Answer

The most appropriate response to indicate whether the sampling method supports a valid inference is:

No, because the sample is not chosen randomly.

This is because surveying only those who enter the meat aisle may introduce sampling bias, as it does not represent the overall shopper population or their coupon usage behavior. The sample is limited to a specific area of the store (the meat aisle), and shoppers in that aisle may have different characteristics or shopping habits compared to the general population of shoppers in the store. Therefore, valid inferences about coupon usage among all shoppers cannot be confidently made based on this sample.