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The GLS Estimator Is Defined as
A) X′X ^ { \prime }

Question 50

Multiple Choice

The GLS estimator is defined as


A) ( X′X ^ { \prime } ?-1X) -1 ( X′X ^ { \prime } ?-1Y) .
B) ( X′X ^ { \prime } X) -1 X′X ^ { \prime } Y.
C) A′A ^ { \prime } Y.
D) ( X′X ^ { \prime } X) -1 X′X ^ { \prime } U.

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