A restaurant chain's owners are trying to decide if they want to open up a franchise in your town. To help them decide,

Question

A restaurant chain's owners are trying to decide if they want to open up a franchise in your town. To help them decide,

they want to find out how often people in your town go out to eat. A researcher interviews people leaving a local
restaurant. Is there a bias in this sampling method? Explain.

Answer 1

Yes, there is a bias in this sampling method. By only interviewing people leaving a local restaurant, the researcher is only capturing the opinions and behaviors of individuals who dine out frequently. This could lead to an overrepresentation of individuals who eat out often and may not accurately represent the entire population of the town. It would be more balanced to survey a random sample of individuals from the town to get a more accurate understanding of the frequency of eating out.