Suppose That You Believe That a Cubic Relationship Exists Between

Multiple Choice

Suppose that you believe that a cubic relationship exists between the independent variable (of time) and the dependent variable Y.Which of the following would represent a valid linear regression model?

A) Y = b₀ + b₁ X,where X = time³
B) Y = b₀ + b₁ X³,where X = time
C) Y = b₀ + 3b₁ X,where X = time³
D) Y = b₀ + 3b₁ X,where X = time
E) Y = b₀ + b₁ X,where X = time^1/3