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?

All customers who use the drive-thru window of this fast food restaurant.

Population refers to the collection of people who exhibits a common behavior  that are associated with the particular research. Samples are the population's subset. In the population the people with the similar characteristics will all be included. In sample only a part of that population will be included.

In the example given, the manager wants to  know about the satisfaction of the customers about the services provided by the restaurant. He wants  drive-thru employee to ask the every fifth customer. Thus all the customers who uses the drive-thru window of the restaurant will be included in the population. Each and every fifth customer who are interviewed about the satisfaction level of the customers will be included in the sample.

answer///the stewardship worldview;

answer/// real gdp decreases to y3 and the price level falls to p3;