The ___________ is a minimum-variance unbiased point estimate of the mean of a normally distributed population.
A)Sample mean
B)Sample variance
C)Sample standard deviation
D)Observed mean

Question

Quizplus · Accepted Answer

The sample mean is an unbiased estimator of the population mean, meaning that on average, it will give the correct estimate. It is also the minimum-variance estimator, meaning that there is no other unbiased estimator that has a lower variance than the sample mean.

The ___________ Is a Minimum-Variance Unbiased Point Estimate of the Mean