**371. When testing for randomness, we can use_____________?**

A. Sign test

B. None of these**C. Runs test**

D. D Mann-Whitney U test

**372. The non parametric equivalent of an unpaired samples t-test____________?**

A. Kruskal Wallis Test**B. Mann-Whitney U test**

C. Wilcoxon signed rank test

D. Sign test

**373. 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

**374. In binomial distribution the probability of success remains __________ from trial to trial?**

**A. Constant**

B. Varies

C. Four

D. Probability

**375. A binomial random variable can assume values from _________ to n?**

A. 6

B. 3

C. 2**D. 0**

**376. 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**

**377. 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**

**378. The Wilcoxon, Rank-Sum test used to compares_______________?**

A. Any number of populations

B. A sample mean to the population mean**C. Two populations**

D. Three populations

**379. Which of the following test must be two-sided ?**

**A. Sign tes**t

B. Wilcoxon Signed Rank

C. Kruskal-Wallis

D. Runs test

**380. Which of the following test is most likely assessing this null hypothesis: Ho The number of violations per apartment in the population of all city apartments is binomially distributed with a probability of success in any one trial of P=0.3 dd ?**

A. The Mann-Whitney test

B. The Kruskal-Wallis test

C. The Wilcoxon Signed Rank test**D. The Kolmogorove-Simirnor test**

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