Suppose that a multiple regression model contains two predictors, X1 and X2. You decide to remove X2 from the model. After removing X2 what happens to the estimate of the coefficient of X1?
Question 21 options:
a.The estimate for the coefficient of X1 does not change.
b.The estimate for the coefficient of X1 usually increases.
c.The estimate for the coefficient of X1 always decreases.
d.None of the above answers are correct.