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Before the patients begin taking the drug they are

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Unformatted text preview: ull hypothesis? H0: D1 is shifted to the right or left of D2 A. Reject H0 if T ≥ 83 B. Reject H0 if T ≥ 127 C. Reject H0 if T ≥ 131 D. Reject H0 if T ≤ 83 E. Reject H0 if T ≤ 79 AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 1-1817 Chapter 01 - An Introduction to Business Statistics 42. Refer to the Mega-Stat/Excel output for the Wilcoxon rank sum test given in the table below. At a significance level of .05, which one of the following rejection point conditions is correct regarding the following null hypothesis? H0: D1 is shifted to the left of D2 A. Reject H0 if T ≥ 83 B. Reject H0 if T ≤ 127 C. Reject H0 if T ≥ 131 D. Reject H0 if T ≤ 83 E. Reject H0 if T ≤ 79 AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Learning Objective: 2 Topic: Rank Sum 1-1818 Chapter 01 - An Introduction to Business Statistics 43. Refer to the Mega-Stat/Excel output for the Wilcoxon rank sum test given in the table below. At a significance level of .05, which one of the following statements is correct regarding the following null hypothesis? H0: D1 is shifted to the left of D2 A. We reject H0 and conclude there is very strong evidence that the median value of the first sample significantly differs from the median value of the second sample. B. We reject H0 and conclude there is very strong evidence that the median value of the first sample is significantly less than the median value of the second sample. C. We failed to reject H0 and conclude there is not sufficient evidence that the median value of the first sample is significantly less than the median value of the second sample. D. We failed to reject H0 and conclude there is not sufficient evidence to conclude that the median value of the first sample is not significantly different than the median value of the second sample. E. We failed to reject H0 and conclude there is very strong evidence that the median value of the first sample is significantly less than the median value of the second sample. AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 1-1819 Chapter 01 - An Introduction to Business Statistics 44. Refer to the Mega-Stat/Excel output for the Wilcoxon signed rank test given in the table below. At a significance level of .01, which one of the following statements is correct regarding the following null hypothesis? H0: D1 is shifted to the left of D2 A. We reject H0 and conclude there is not sufficient evidence that the probability distribution of population 1 is shifted to the left of the probability distribution of population 2. B. We failed to reject H0 and conclude there is not sufficient evidence that the probability distribution of population 1 is shifted to the left of the probability distribution of population 2. C. We reject H0 and conclude there is very strong evidence that the probability distribution of population 1 is shifted to the left of the probability distribution of population 2. D. We failed to reject H0 and conclude there is very strong evidence that the probability distribution of population 1 is shifted to the left or to the right of the probability distribution of population 2. E. We failed to reject H0 and conclude there is very strong evidence that the probability distribution of population 1 is identical to the probability distribution of population 2. AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 3 Topic: Signed rank test 1-1820 Chapter 01 - An Introduction to Business Statistics 45. Refer to the Mega - Stat/Excel output for the Wilcoxon signed rank test given in the table below. At a significance level of .01, which one of the following rejection point conditions is correct regarding the following null hypothesis? H0: D1 is shifted to the left of D2 A. T- ≤ 5 B. T+ ≤ 5 C. T- ≤ 11 D. T- ≤ 3 E. Smaller of the T+ or T- is less than 8 AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 3 Topic: Signed rank test 1-1821 Chapter 01 - An Introduction to Business Statistics 46. A professional organization is attempting to determine whether salaries of hospital CFOs differ by geographical region. Five hospital CFOs were randomly selected from each of the following four regions of the United States: East, Midwest, South, and West. Each CFO was than asked his or her annual salary. The distributions of salaries were highly skewed. The table below summarizes the results of the Kruskal-Wallis test obtained from Mega-Stat/Excel. At a significance level of .05, which one of the following statements is correct regarding the following null hypothesis? H0: The four populations under consideration have identical locations A. We reject H0 and conclude there is very strong evidence that the median hospital CFO salaries differ among all four regions in the United States. B. We failed to reject H0 and conclude there is not sufficient evidence that the median hospital CFO salaries differ among any of the four regions of the United States. C. We failed to reject H0 and conclude ther...
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This document was uploaded on 01/20/2014.

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