Assume that two populations have the same variance 2. If a sample of size n1 produced a
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is an unbiased estimator of σ2. Show that (S12 + S22) / 2 is also an unbiased estimator of σ2. Which of the two estimators would you prefer? Give reasons for your choice.
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Es E 3 1s n1 s2 n 12 1 1 n 12 s is an unbiased est...View the full answer
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Related Book For 
Mathematical Statistics With Applications In R
ISBN: 9780124171138
2nd Edition
Authors: Chris P. Tsokos, K.M. Ramachandran
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