Sample variance S2 is unbiased estimator of population variance 26 because ________________?

Related Mcqs:

1. An estimator Q is an unbiased estimator of the population parameter Q if ___________________?

   A. E(x) = µ B. E(Q) =Q C. E(Q) =Q D. E(P) = P...

2. The minimum variance unbiased estimator of the population mean is _______________?

   A. 6/√n B. S/√n C. S2/n D. 6x/√n...

3. Since E(X) _______X is said to be unbiased estimator of the population mean?

   A. Q B. X C. Ux D. u...

4. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as_________________E[∏(θ)ιX1,X2,…..,Xn] is called?

   A. Posterior Bay’s estimator B. Minimax estimator C. Bay’s estimator D. Sufficient estimator...

5. Sample proportion P is __________ estimator?

   A. Biased B. Parameter C. Unbiased D. None of these...

6. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as______________E[∏(θ)ιX1,X2,…..,Xn] is called?

   A. Posterior Bay’s estimator B. Minimax estimator C. Bay’s estimator D. Sufficient estimator...

7. A list of sample _________ is called sample space?

   A. Events B. Subset C. Piont D. Distinct...

8. If the standard deviation of a population is 9, the population variance is_____________?

   A. 9 B. 3 C. 21 D. 81...

9. Criteria to check a point estimator to be good are_____________?

   A. Consistency B. All Above C. Unbiasedness D. Efficiency...

10. x=40 is estimator of _________________?

    A. (U) B. 6 C. Ux D. 6/√n...