In testing for the difference between two populations, it is possible to use____________?

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

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

When testing for randomness, we can use_____________?

A. Sign test

B. None of these

C. Runs test

D. D Mann-Whitney U test

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

Which of the following test must be two-sided ?

A. Sign test

B. Wilcoxon Signed Rank

C. Kruskal-Wallis

D. Runs test