1) Let Z1,Z2,….Zn be independent and identically distributedrandom variable, satisfying E[ι Zt ι]<∞. Let N be an integer valued random variable whose value n depends only on the values of the first n Z¡'s. Suppose E(N)< ∞, then E(Z1,Z2,….Zn)=E(N)E(Z) is called ? a. Independence Equation b. Sequential Probability Likelihood Equation c. Neyman Pearson Lemma d. Wald’s Equation
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2) Let X1,X2,…Xn be a random sample from the density f(x;(θ), where θ may be vector. If the conditional distribution of X1,X2,…Xn given S=s does not depend on θ for any value of s of S, then statistic is called? a. Minimal sufficient statistic b. Sufficient statistic c. Efficient d. Minimax statistics
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3) if Var(θˆ)→0 as n → 0, then θˆ is said to be______________? a. Sufficient b. Efficient c. Unbiased d. Consistent
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4) if f(x1,x2,…xn;θ)=g(θˆ;θ)h(x1,x2,….,xn), then θˆ is____________? a. Consistent b. Sufficient c. Efficient d. Unbiased
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5) Which of the following test use Rank Sums____________? a. Kruskal-Wallis and Wilcoxon tests b. Runs test c. Chi-Square and sign test d. F test
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6) Wilcoxon Rank-Sum test can be of_______________? a. Lower tailed b. Upper tailed c. Either of the above d. None of the above
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7) When using the sign test, if two scores are tied, then_____________? a. We count them b. We discard them c. We depends upon the scores d. non of these
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8) 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
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9) The Spearman Rank-Correlation test requires that the______________? a. Data must be measured on the same scale b. Data should be of ordinal scale at least c. Data must be distribution at least approximately as a t-distribution d. Data must be from two independent samples
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10) 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
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