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.Management Sciences
Category: Statistical Inference Mcqs
A_______ is the specific value of the statistic used to estimate the population parameter?
A. Point estimator
B. C.I.
C. Estimator
D. None of these
if f(x1,x2,…xn;θ)=g(θˆ;θ)h(x1,x2,….,xn), then θˆ is____________?
A. Consistent
B. Sufficient
C. Efficient
D. Unbiased
In a Wilcoxon Rank-Sum test__________________?
A. Ties within one sample may affect the decision
B. Ties always affect the decision
C. Ties never affect the decision
D. Ties between the two sample may affect the decision
Wilcoxon Rank-Sum test can be of_______________?
A. Lower tailed
B. Upper tailed
C. Either of the above
D. None of the above
if Var(θˆ)→0 as n → 0, then θˆ is said to be______________?
A. Sufficient
B. Efficient
C. Unbiased
D. Consistent
The t distribution are_____________?
A. Symmetrical
B. None of these
C. Same as Normal Curve
D. Skewed
Comparing the times to failure of radar transponders made by firms A, B, and C based on an airline’s sample experience with the three types of instruments one may use____________?
A. Kolmogorov-Smirnor test
B. Wilcoxon Rank-Sum test
C. Spearman Rank Correlation test
D. Kruskal-Wallis test
Which of the following is a true statement for comparing the t distribution with standard normal ?
A. Greater the degree of freedom, the more the t-distribution resembles the standard normal distribution
B. The Normal Curve is symmetrical whereas the t-distribution are slightly skewed.
C. The proportion of area beyond a specific value of “t” is less than the proportion of normal curve
D. Non of these
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