Multiple Choice
Weighted least squares estimation is used only when _____.
A) the dependent variable in a regression model is binary
B) the independent variables in a regression model are correlated
C) the error term in a regression model has a constant variance
D) the functional form of the error variances is known
Correct Answer:

Verified
Correct Answer:
Verified
Q17: Which of the following is true of
Q18: Which of the following is true?<br>A)If we
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