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Fail to reject the null hypothesis not enough

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Unformatted text preview: hat the variances of the two populations are equal. TRUE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 11. In testing the significance of a population correlation coefficient using the Spearman's rank correlation coefficient, it is assumed that all possible combinations of values of variable X and variable Y have a bivariate normal probability distribution. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 5 Topic: Rank correlation coefficient 12. The sign test is a test about a population median that is valid for any sample size and population shape. TRUE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Sign Test 13. The Spearman's rank correlation test can be used to study the relationship between two ordinal variables. TRUE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 5 Topic: Rank correlation coefficient 1-1804 Chapter 01 - An Introduction to Business Statistics 14. The sign test is a nonparametric test for a population mean that is valid for any sample size and population shape. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Hard Learning Objective: 1 Topic: Sign Test 15. The Kruskal-Wallis test requires that all p samples being compared must have equal sample sizes. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 4 Topic: Kruskal-Wallis 16. The Wilcoxon rank sum test requires that two independent samples being compared must have equal sample sizes. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 1-1805 Chapter 01 - An Introduction to Business Statistics Multiple Choice Questions 17. Which one of the following nonparametric methods requires that we carry out a paired difference experiment? A. Wilcoxon signed rank test B. Sign test C. Kruskal-Wallis test D. Wilcoxon rank sum test AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 3 Topic: Signed Rank 18. Which one of the following nonparametric methods can be used with a single population? A. Spearman's test B. Sign test C. Kruskal-Wallis test D. Wilcoxon rank sum test AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Sign Test 19. Which of the following statements about nonparametric methods is correct? A. Nonparametric methods are only used in cases where parametric tests such as t or F do not exist. B. Nonparametric tests should always be used when one is available because they are easier to apply then their parametric counterparts. C. Nonparametric tests are useful alternatives to parametric tests such as t or F when certain assumptions required by parametric tests are violated. D. Nonparametric tests are only used if the data comes from independent samples. AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Nonparametric methods 1-1806 Chapter 01 - An Introduction to Business Statistics 20. Which one of the following nonparametric methods can be used to compare more than two independent populations in a single test? A. Wilcoxon signed rank test B. Sign test C. Kruskal-Wallis test D. Wilcoxon rank sum test E. Spearman's test AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 4 Topic: Kruskal-Wallis 21. Which one of the following nonparametric methods can be considered as an extension of the Wilcoxon rank sum test? A. Wilcoxon signed rank test B. Sign test C. Kruskal-Wallis test D. Spearman's test AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Hard Learning Objective: 4 Topic: Kruskal-Wallis 22. Which one of the following nonparametric methods can be used to determine the strength of the relationship between two variables? A. Wilcoxon signed rank test B. Sign test C. Kruskal-Wallis test D. Wilcoxon rank sum test E. Spearman's test AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 5 Topic: Rank correlation coefficient 1-1807 Chapter 01 - An Introduction to Business Statistics 23. The Wilcoxon rank sum test is the nonparametric counterpart of the: A. Large sample test about a single population mean B. Two independent samples t test C. F test D. Paired difference t test E. F test for equality of population variances AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 24. The Kruskal-Wallis test is the nonparametric counterpart of the: A. Large sample test about a single population mean B. Two independent samples t test C. One way ANOVA F test D. Paired difference t test E. F test for equality of population variances AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 4 Topic: Kruskal-Wallis 25. The Wilcoxon signed rank test is the nonparametric counterpart of the: A. Large sample test about a single population mean B. Two independent samples t tes...
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This document was uploaded on 01/20/2014.

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