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Please answer parts a and b. Suppose you have a sample of n inglependent observations Y1, 1:2, . . . , Yn from a normal

Please answer parts a and b.
Suppose you have a sample of n inglependent observations Y1, 1:2, . . . , Yn from a normal pop ulation with mean ,u and variance 02 known. Y and 832,- = 2" 1-2106- Y)2 are the sample mean and sample variance, respectively. (a) Find the ML estimator of a (b) Find the ML estimator of 7' 2 p2

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