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

Answer 1

It depends on the size and representativeness of the sample. If the sample is large enough and representative of all shoppers in the store, then the sampling method may support a valid inference. However, if the sample is too small or biased in some way (e.g. only surveying shoppers during a certain time of day), then the sampling method may not support a valid inference.