Staff at Costco often randomly stop shoppers inside their stores to seek their input on a number of marketing issues. This is called a(n)
A) equal sample.
B) population
C) non-probability sample.
D) random sample.
E) probability sample.

Question

Quizplus · Accepted Answer

This is a non-probability sample because staff members are selecting shoppers based on their own personal judgment and not using a statistically random method.

Staff at Costco Often Randomly Stop Shoppers Inside Their Stores