THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Let X1,X2,X3,and X4 be a random sample of observations from a population with mean μ and variance σ2.Consider the following two point estimators of μ:
1 = 0.10 X1 + 0.40 X2 + 0.40 X3 + 0.10 X4 and
2 = 0.20 X1 + 0.30 X2 + 0.30 X3 + 0.20 X4
-Which of the following statements is true?
A)
1 is biased,but
2 is an unbiased estimator of μ.
B)
1 is unbiased,but
2 is a biased estimator of μ.
C) Both
1 and
2 are unbiased estimators of μ.
D) Both
1 and
2 are biased estimators of μ.
Correct Answer:
Verified
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