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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 11817 Chapter 01  An Introduction to Business Statistics 42. Refer to the MegaStat/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 11818 Chapter 01  An Introduction to Business Statistics 43. Refer to the MegaStat/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 11819 Chapter 01  An Introduction to Business Statistics 44. Refer to the MegaStat/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 11820 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 11821 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 KruskalWallis test obtained from MegaStat/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.
 Winter '14

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