For a Linear Regression Model with a Dummy Variable D

Multiple Choice

For a linear regression model with a dummy variable d and an interaction variable xd,we _______________________________________________________________.

A) cannot conduct the F test for the joint significance of d and xd
B) can conduct the F test for the joint significance of d and xd
C) cannot conduct t test for the individual significance of d and xd
D) can conduct the chi-square test for testing the independence of attributes