Let Y12<>9be the order statistics of a random sample of size 9 from the uniform distribution having pdf f(x; θ)=1/θ, 0 <><><>5is an unbiased estimator of θ. Determine the joint pdf of Y5and the sufficient statistic Y9for θ. Find the conditional expectation E(2Y5|y9) = φ(y9). Compare the variances of 2Y5and φ(Y9).
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