Imperfect multicollinearity a implies that it will be diffic

Imperfect multicollinearity

a. implies that it will be difficult to estimate precisely one or more of the partial effects using the data at hand.

b. violates one of the four Least Squares assumptions in the multiple regression model.

c. means that you cannot estimate the effect of at least one of the Xs on Y.

d. indicates that the error terms are highly, but not perfectly, correlated.

Solution

a. implies that it will be difficult to estimate precisely one or more of the partial effects using the data at hand.

IS CORRECT ANSWER !!