If You Rerun a Regression,omitting a Predictor X5,which Would Be

Multiple Choice

If you rerun a regression,omitting a predictor X5,which would be unlikely?

A) The new R2 will decline if X5 was a relevant predictor.
B) The new standard error will increase if X5 was a relevant predictor.
C) The remaining estimated β's will change if X5 was collinear with other predictors.
D) The numerator degrees of freedom for the F test will increase.