With reference to Exercise 10.21, find the efficiency of the estimator of part (a) with Ï =
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If 1 is the mean of a random sample of size n from a normal population with the mean µ and the variance Ï21, 2 is the mean of a random sample of size n from a normal population with the mean µ and the variance Ï22, and the two samples are independent.
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John E Freunds Mathematical Statistics With Applications
ISBN: 9780134995373
8th Edition
Authors: Irwin Miller, Marylees Miller
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