The data collected from the customers in restaurants about the quality of food is an example of
A) variable study.
B) cross-sectional study.
C) experimental study.
D) observational study.

Question

Quizplus · Accepted Answer

Nonexperimental, or observational, studies make no attempt to control the variables of interest. Some restaurants use observational studies to obtain data about customer opinions on the quality of food, quality of service, atmosphere, and so on.

The Data Collected from the Customers in Restaurants About the Quality