If the expected value of a sample statistic is equal to the parameter it is estimating, then we call that sample statistic
A) minimum variance.
B) random.
C) biased.
D) unbiased.

Question

Quizplus · Accepted Answer

An unbiased sample statistic is one that is not systematically higher or lower than the parameter it is estimating. If the expected value of the statistic is equal to the parameter, then it is unbiased. Therefore, the correct answer is D.

If the Expected Value of a Sample Statistic Is Equal