An unbiased estimate of σ² is _____. A)s B)s²

Question

Quizplus · Accepted Answer

An unbiased estimate for the population parameter sigma squared is the sample variance, which is computed by dividing the sum of squares by the degrees of freedom. In this case, we have no information on the sample size or the number of variables involved, so we cannot calculate the degrees of freedom. As such, the only option among the given choices is to keep the expression as is and not substitute any value for sigma squared. Therefore, Choice B is correct.

An Unbiased Estimate of σ2 Is _____

An Unbiased Estimate of σ² Is _____