Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Suppose that x1 and x2 are random samples of observations from a population with mean μ and variance σ2.Consider the following three point estimators,X,Y,and Z,of μ: X = (x1 + x2)/2,Y = (x1 + 3x2)/4,and Z = (x1 + 2x2)/3.
-Show that all three estimators X,Y,and Z are unbiased.
Correct Answer:
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E(X)= [E(X1)+ E(X2)]/2 = (μ + μ)...View Answer
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Correct Answer:
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