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...
3 answers
Yes, there is a bias in this sampling method. By only interviewing people leaving a local restaurant, the researcher is only capturing data from a specific group of people who are more likely to eat out frequently. This could lead to an overrepresentation of individuals who dine out regularly and may not accurately reflect the dining habits of the entire population in the town. To reduce bias, the researcher should use a more random sampling method that includes a broader range of individuals from the town.
use simpler terms
Sure! By only asking people who are leaving a restaurant, the researcher may not be getting a fair idea of how often everyone in the town eats out. The people they talk to might eat out more often than most. It would be better to ask a random group of people to get a more accurate picture.