)Which of the Following Is Not an Assumption of the Multiple

Multiple Choice

) Which of the following is not an assumption of the multiple regression model?

A) The values of each x_ik are not random and are not exact linear functions of the other explanatory variables.
B) var(y_i. ) = var(e_i) = $\sigma$ ²
C) The least squares estimators are BLUE.
D) cov(y_i,y_j) = cov(e_i,e_j) = 0; (i≠j)