If sample variance is computed by dividing SS by df = n - 1,then the average value of the sample variances from all possible random samples will be _______ the population variance.
A)smaller than
B)larger than
C)exactly equal to
D)unrelated to

Question

Quizplus · Accepted Answer

The average value of the sample variances from all possible random samples is exactly equal to the population variance when the sample variance is computed using n - 1 (the unbiased estimator).

If Sample Variance Is Computed by Dividing SS by Df