SME_8e_Ch_19_Section - CHAPTER 19 SECTION 4 NONPARAMETRIC STATISTICS MULTIPLE CHOICE 111 The Friedman test applies to which situation a When the

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1 CHAPTER 19 SECTION 4: NONPARAMETRIC STATISTICS MULTIPLE CHOICE 111. The Friedman test applies to which situation? a. When the problem objective is to compare two or more populations. b. The data are either ordinal or interval but not nominal. c. The data are generated from a randomized block experiment. d. All of these choices are true. ANS: D PTS: 1 REF: SECTION 19.4 112. The nonparametric counterpart of the randomized block model of the analysis of variance is the: a. Kruskal-Wallis test. b. Friedman test. c. Wilcoxon rank sum test. d. Wilcoxon signed rank sum test. ANS: B PTS: 1 REF: SECTION 19.4 113. A nonparametric method to compare two or more populations, when the samples are matched pairs and the data are either ordinal or interval but not normal, is the: a. Wilcoxon signed rank sum test. b. sign test. c. Friedman test. d. Kruskal-Wallis test. ANS: C PTS: 1 REF: SECTION 19.4 114. In a Friedman test for comparing three populations, provided that there are five blocks, the test statistic is calculated as F r = 6.594. Then, the most accurate statement that can be made about the p -value is: a. p -value < 0.025 b. .05 < p -value < .10 c. .025 < p -value < .05 d. p -value > .10 ANS: C PTS: 1 REF: SECTION 19.4 115. The Friedman test is always: a. one-tail with > in the alternative hypothesis. b. one-tail with < in the alternative hypothesis. c. two-tail d. None of these choices. ANS: A PTS: 1 REF: SECTION 19.4
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2 116. In a Friedman test for comparing four populations, provided that there as eight blocks, the test statistic is calculated as F r = 10.98. If the test is conducted at the 5% significance level, the conclusion and p -value will be: a. reject the null hypothesis, and 0.01 < p -value < 0.025. b. reject the null hypothesis, and p -value > 0.025. c. do not reject the null hypothesis, and 0.025 < p -value < 0.05. d. do not reject the null hypothesis, and p -value > 0.05. ANS: A PTS: 1 REF: SECTION 19.4 117. To apply the Friedman test to determine whether the locations of two or more populations are the same, the samples must be: a. from a randomized block experiment. b. from normal populations. c. independent. d. All of these choices are true. ANS: A PTS: 1 REF: SECTION 19.4 118. The test statistic F r for the Friedman test has what distribution? a.
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This note was uploaded on 09/28/2010 for the course FINOPMGT 250 taught by Professor Kumar during the Spring '10 term at University of Massachusetts Boston.

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SME_8e_Ch_19_Section - CHAPTER 19 SECTION 4 NONPARAMETRIC STATISTICS MULTIPLE CHOICE 111 The Friedman test applies to which situation a When the

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