A researcher has been asked to determine if offering a discount drink during happy hour to those who purchase a drink in the morning increases the likelihood of their return in the afternoon, what statistic would he or she be most interested in?
A) variance
B) mean
C) standard deviation
D) proportion

Question

Quizplus · Accepted Answer

The researcher is interested in determining if the discount drink in the morning increases the likelihood of return in the afternoon, which is a binary outcome (either they return or they don't). Therefore, the most appropriate statistic to use is a proportion, representing the proportion of customers who return in the afternoon after receiving the discount in the morning.

A Researcher Has Been Asked to Determine If Offering a Discount