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.Management Sciences
Category: Statistical Inference Mcqs
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
what is the probability of a type II error when α=0.05 ?
A. 0.025
B. 0.95
C. 0.05
D. Cannot be determined without more information
To perform a Runs test for randomness the data must be_______________?
A. Divided into at least two classifications
B. Divided into exactly two classifications
C. Quantitative
D. Qualitative
The values that separate the region of rejection and acceptance region are called _______________?
A. Critical value
B. Confidence limits
C. Confidence boundaries
D. None of these
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