Question: Consider the statistic , the pooled estimate of discussed in Section 9.8. It is used when one is willing to assume that . Show

Consider the statistic , the pooled estimate of σ

discussed in Section 9.8. It is used when one is willing to assume that . Show that the estimator is unbiased for σ [i.e., M M

F F

M F 2

2 show that ]. You may make use of results from any theorem or example in this chapter.

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