Which of the following settings would require the use of multiple regression (as opposed to simple regression)?
A) Predicting grocery sales as a function of price and local population.
B) Predicting grocery sales as a function of being a weekend day, or a weekday day.
C) Predicting grocery sales as a function of being an AM hour or a PM hour.
D) Predicting grocery sales as a function of local number of competitors.

Question

Quizplus · Accepted Answer

Multiple regression is needed when there are more than one independent variables predicting a dependent variable. In this case, grocery sales are being predicted by both price and local population, therefore multiple regression is needed. The other options have only one independent variable each and can be predicted using simple regression.

Which of the Following Settings Would Require the Use of Multiple