How Is the Efficiency of Estimators Defined

question 41

Multiple Choice

How is the efficiency of estimators defined?

• A)An estimator is efficient if its expected value equals the estimated population parameter.
• B)An efficient estimator approaches the estimated population parameter as the sample size grows larger.
• C)An estimator is efficient if it always gives the correct value of the estimated population parameter.
• D)An unbiased estimator is efficient if its standard error is lower than that of other estimators of the estimated population parameter.

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