Compare S 2 and S '2 (see Exercise 9.1), the two estimators of a 2 , to
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Compare S2 and S'2 (see Exercise 9.1), the two estimators of a2, to determine which is more efficient, assume they are estimators found using X1, X2,...,Xn, independent random variables from n(∞: μ, σ). Which estimator is more efficient considering only the variance of the estimators?
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