Which of the following regression models does not include an interaction variable? A) y = β₀ + β₁x + β₂xd + ε B) y = β₀ + β₁x + β₂x² + ε C) y = β₀ + β₁d + β₂xd + ε D) y = β₀ + β₁x + β₂d + β₃xd + ε

Question

Quizplus · Accepted Answer

Option B does not include an interaction variable as all the variables are separate and not multiplied together. The other options have at least one interaction term between two or more variables.

Which of the Following Regression Models Does Not Include an Interaction