Which of the following best describes an unbiased estimator?
A)Every estimator is an unbiased estimator.
B)An interval estimator is an unbiased estimator.
C)An unbiased estimator of a population parameter is an estimator whose expected value is equal to that parameter.
D)None of these choices are correct.

Question

Quizplus · Accepted Answer

An unbiased estimator is an estimator whose expected value is equal to the true value of the population parameter. This means that, on average, the estimator does not over- or underestimate the parameter. The other choices are not accurate descriptions of an unbiased estimator.

Which of the Following Best Describes an Unbiased Estimator