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.Management Sciences
Category: Statistical Inference Mcqs
For a biased estimator θˆ of θ, which one is correct_______________?
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A. MSE(θˆ)=SD(θˆ)+Bias
B. MSE(θˆ)=Var(θˆ)+Bias2
C. MSE(θˆ)=SD(θˆ)+Bias2
D. MSE(θˆ)=Var(θˆ)+Bias
The first and starting point in test Hypothesis is ______________?
A. stating H1
B. stating Ho
C. L of significance
D. Test statistics
for two estimators T1=t1(X1,X2,….Xn) and T1=t1(X1,X2,….Xn) then estimators t1 is defined to be Rt1(θ)≤Rt2(θ) for all θ in Θ ?
A. Consistent estimator
B. Admissible estimator
C. Sufficient estimator
D. Minimax estimator
Criteria to check a point estimator to be good are_____________?
A. Consistency
B. All Above
C. Unbiasedness
D. Efficiency
__________ is the process of using sample information to reach?
A. Population
B. Biased
C. Unbiased
D. Increase
The Estimation and testing of hypothesis are main branches of ________________?
A. Sampling
B. Probability distribution
C. Regression
D. Statistical Inference
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
Let X1,X2,…Xn be a random sample from the density f(x;(θ), where θ may be vector. If the conditional distribution of X1,X2,…Xn given S=s does not depend on θ for any value of s of S, then statistic is called?
A. Minimal sufficient statistic
B. Sufficient statistic
C. Efficient
D. Minimax statistics
When using the sign test, if two scores are tied, then_____________?
A. We count them
B. We discard them
C. We depends upon the scores
D. non of these
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