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 manager asked everyone who entered the meat aisle. Yes, because the manager asked everyone who entered the meat aisle. No, because the sample is not chosen randomly. No, because the sample is not chosen randomly. Yes, because the sample contains coupon users and non-users. Yes, because the sample contains coupon users and non-users. No, because not all people who enter the meat aisle use coupons.
1 answer
The appropriate response to the question is:
No, because the sample is not chosen randomly.
Although the manager surveyed everyone who entered the meat aisle, this method does not ensure that the sample is representative of the entire population of shoppers. The shoppers in the meat aisle might have different coupon usage patterns compared to shoppers in other areas of the store. Therefore, the inference about the percentage of all shoppers who use coupons may not be valid.
