Statistics MCQs

734 MCQs  (Page 55 of 74)

Attempt Statistics Mcqs Quiz
In testing for the difference between two populations, it is possible to use____________?
A. The wilcoxon rank-sum test
B. The sign test
C. None of the above
D. Either of the above
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The Runs test results in rejecting the null hypothesis of randomness when______________?
A. There is an unusually large number of runs
B. There is an unusually small number of runs
C. None of these
D. Either of the above
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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
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A quantity obtained by applying certain rule or formula is known as ________________?
A. Estimate
B. Test statistics
C. Estimation
D. Sample
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For t distribution, increasing the sample size, the affect will be on ?
A. Standard error of the means
B. The t-ratio
C. Degrees of freedom
D. All above
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condition for applying Central Limit Theorem (CLT) which approximate the sampling distribution of the mean with a normal distribution is ?
A. N > 30
B. N(1 – p) > 5
C. 2 n 5
E. N < 30
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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
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1 – α is the probability of_____________?
A. Acceptance region
B. Type-i error
C. Type-ii error
D. Rejection region
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Parameter is a _________ quantity?
A. Constant
B. Variable
C. All of above
D. Non of these
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If we reject the null hypothesis, we might be making____________?
A. Unpredictable
B. A correct decision
C. Type-ii error
D. Type-error
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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