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Unformatted text preview: ith a standard deviation of 46.94. What is the critical value for α = .001 to test the hypotheses. A. 3.792 B. 3.767 C. 3.505 D. 3.485 E. 3.09 AACSB: Analytic Bloom's: Comprehension Difficulty: Medium Topic: Hypothesis testing 1-809 Chapter 01 - An Introduction to Business Statistics 131. A sample of 400 journalism majors at a major research university was asked if they agreed with the following statement "Government should be more involved in oversight and regulation of reporting". Fifty-two (52) percent of the respondents agreed with the statement. Calculate the appropriate test statistic to test the claim that at least 50% of journalism majors agree with the statement. A. 0.80 B. 1.60 C. 8.00 D. -1.60 E. -0.80 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 132. A sample of 400 journalism majors at a major research university was asked if they agreed with the following statement "Government should be more involved in oversight and regulation of reporting". Fifty-two (52) percent of the respondents agreed with the statement. Calculate the p-value associated with the test statistic. A. .0001 B. .2000 C. .2119 D. .2881 E. .4238 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 1-810 Chapter 01 - An Introduction to Business Statistics 133. In an early study, researchers at an Ivy University found that 33% of the freshmen had received at least one A in their first semester. Administrators are concerned that grade inflation has caused this percentage to increase. In a more recent study, of a random sample of 500 freshmen, 185 had at least one A in their first semester. Calculate the appropriate test statistic to test the hypotheses. A. 1.853 B. 1.157 C. 1.902 D. 2.710 E. -1.902 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 134. In an early study, researchers at an Ivy University found that 33% of the freshmen had received at least one A in their first semester. Administrators are concerned that grade inflation has caused this percentage to increase. In a more recent study, of a random sample of 500 freshmen, 185 had at least one A in their first semester. Calculate the p-value associated with the test statistic. A. .0034 B. .0287 C. .0322 D. .0547 E. .1230 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 1-811 Chapter 01 - An Introduction to Business Statistics 135. The university registrar claims that fewer than 20 percent of the students who enroll at Ivy University graduate in four years. To test this claim, a random sample of 100 students was selected, and 18 were found to have graduated in four years. Calculate the appropriate test statistic to test the hypotheses. A. 5.00 B. 0.50 C. 0.212 D. -0.50 E. -1.00 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 136. The university registrar claims that fewer than 20 percent of the students who enroll at Ivy University graduate in four years. To test this claim, a random sample of 100 students was selected, and 18 were found to have graduated in four years. Calculate the p-value associated with the test statistic. A. 0.1587 B. 0.3085 C. 0.4168 D. 0.0001 E. -0.3085 AACSB: Analytic Bloom's: Application Difficulty: Easy Topic: Hypothesis testing 1-812 Chapter 01 - An Introduction to Business Statistics 137. Last year, KAAA's share of the 6 pm news audience was approximately equal to, but not greater than, 25 percent. This station's advertising department believes the current audience share is higher than last year's 25 percent share. In an attempt to substantiate this belief, the station surveyed a random sample of 400 6 pm viewers and found that 146 watched KAAA. Calculate the appropriate test statistic to test the hypotheses. A. -5.31 B. -4.69 C. 3.21 D. 4.69 E. 5.31 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 138. Last year, KAAA's share of the 6 pm news audience was approximately equal to, but not greater than, 25 percent. This station's advertising department believes the current audience share is higher than last year's 25 percent share. In an attempt to substantiate this belief, the station surveyed a random sample of 400 6 pm viewers and found that 146 watched KAAA. Find the critical value for testing these hypotheses at α = .001. A. 3.09 B. 2.575 C. 2.33 D. 1.96 E. 3.00 AACSB: Analytic Bloom's: Comprehension Difficulty: Easy Topic: Hypothesis testing 1-813 Chapter 01 - An Introduction to Business Statistics 139. Failure to meet payments on student loans guaranteed by the US government has been a major problem for both banks and the government. Approximately 50% of all student loans guaranteed by the government are in default. A random sample of 350 loans to college students in one region of the US indicates that 147 are in default. Calculate the appropriate test statistic to test the hypotheses. A. 2.99 B. 3.03 C. -2.99 D. -3.03 E. -1.94 AACSB...
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This document was uploaded on 01/20/2014.

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