Let Y₁, Y₂, ..., Y₁ denote a random sample with density function given by Ae-Ay, 0 0. f(y|x) = a. Show that X = ₁₁Y₁ is sufficient for X. b. Use the mgf method to show that X~ Gamma(a = n, ß =). c. Show that is the MVUE for A.

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