Question

Although s is a(n) ____ estimate of the population standard deviation, it is more regularly reported than s2 because ___. A) biased; it is easier to calculate because the standard deviation is reported in units instead of squared units. B) biased; it is easier than the standard deviation to read and is reported in units instead of squared units. C) unbiased; the sample variance is always a biased estimator of the population variance. D) unbiased; the standard deviation is easier to understand. E) none of the above

Answer 1

We know that , the sample variance is always an ubiased estimator of the population variance .

But is a biased estimator of the population standard deviation .

Although is a estimate of the population standard deviation, it is more regularly reported than because

A) biased; it is easier to calculate because the standard deviation is reported in units instead of squared units.