Question

a market research company wants to collect opinions on the comfort and performance of a new type of sneaker by brand x. which group of individuals would be the best choice for a random sample?
○ ask every fourth person on the street
○ ask every fourth person who is wearing that brand of sneaker
○ ask every fourth employee from the brand x flagship store
○ ask every fourth person who is wearing shoes

Explanation:

To get a random sample for opinions on Brand X sneakers' comfort and performance, the sample should be unbiased and representative. Asking every fourth person on the street (first option) includes a diverse group with no pre - selection bias related to the sneaker brand or shoe - wearing in a way that limits the sample. The second option (asking those in the brand's sneakers) is a biased sample as it only includes current users of that brand. The third option (Brand X employees) is biased as employees may have a vested interest or different perspective. The fourth option (those wearing shoes) is still a bit more limited than the general street population and may have some implicit bias (e.g., people wearing shoes might be more likely to have certain opinions about footwear but not as general as the street population). So the best random sample is asking every fourth person on the street.

Answer:

A. ask every fourth person on the street