4. Suppose that Đ, and Əz are unbiased estimators of the parameters 0. We know that V(é,) = 20 and V(02)=8. Which estimator is best and in what sense is it best? Calculate the relative efficiency of the estimators. %3D

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4. Suppose that 6, and Ô, are unbiased estimators of the parameters 0. We know
that V(6,) = 20 and V(02)=8. Which estimator is best and in what sense is it
best? Calculate the relative efficiency of the estimators.
Transcribed Image Text:4. Suppose that 6, and Ô, are unbiased estimators of the parameters 0. We know that V(6,) = 20 and V(02)=8. Which estimator is best and in what sense is it best? Calculate the relative efficiency of the estimators.
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