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QUESTION 6 1. If the populations being compared are normally distributed and have equal variances, the most powerful statistical test is a test. a. parametric

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QUESTION 6 1. If the populations being compared are normally distributed and have equal variances, the most powerful statistical test is a test. a. parametric b. nonparametric O & descriptive o dorthogonal 0 QUESTION 7 1. Which of the following could not be analyzed with a Wilcoxon-Wilcox multiple-comparisons test? O a the data for three groups that consisted of ranks in college O b three independent samples O call of the descriptive alternatives are correct o d.M= 10, N2 = 20, Ns = 30 QUESTION & 1. One common use of statistics in education is to rank a set of universities so the Number 1 is "best" and Number Last is "worst." Suppose you thought that the main variable that determined rank was number of students. Which statistic below should you use to make this comparison? O a. Mann-Whitney U test b. Wilcoxon-Wilcox multiple-comparisons test & Wilcoxon signed-rank 7 test O d. Spearman 0 QUESTION 9 1. It makes a difference in the test(s) which value is given a rank of 1. O a. Roth of the descriptive alternatives are correct O b. Mann-Whitney U Test Neither of the descriptive alternatives is correct d. Wilcoxon signed-rank 7 test

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