Regression Analysis Is

Multiple Choice

Regression analysis is:

A) a psychoanalytical tool, often called "regression toward the mean," used by economists to estimate consumer reactions.
B) always preferable to consumer interviews or market experiments.
C) usually done with a pencil and paper.
D) a statistical technique that describes how one variable is related to another.
E) almost never used in practice because of concerns about alienating a firm's customers.