An unbiased estimator is a statistic that targets the value of the of the population parameter such that the sampling distribution of the statistic has a ________ equal to the ________ of the corresponding parameter.
A) range; range/4
B) mean; standard deviation
C) mean; mean
D) standard deviation; standard deviation

Question

Quizplus · Accepted Answer

An unbiased estimator is a statistic that on average equals the population parameter it is estimating, hence the sampling distribution of the estimator has an expected value (i.e. mean) equal to the value of the population parameter being estimated. Therefore, the correct answer is C - mean, mean.

An Unbiased Estimator Is a Statistic That Targets the Value