Question

A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the population?

A. All survey respondents
	B. The proportion of customers who say they are satisfied with their service
	C. All customers who use the drive-thru window of this fast food restaurant
	D. All customers of this restaurant

Answer 1

In statistics, a population is the entire pool from which a statistical sample is drawn. Here the manage is interested his drive thru employees only to ask the fifth customer about his satisfaction.Hence those people who are not availing the drive thru window in this restaurant are not included in the sample space who can be asked for his satisfaction.

So, All customers who use the drive-thru window of this fast food restaurant makes up the population whereas every fifth customer constitute the sample, the representative of the population.