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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 1809 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". Fiftytwo (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". Fiftytwo (52) percent of the respondents agreed with the statement.
Calculate the pvalue 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 1810 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 pvalue 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 1811 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 pvalue 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 1812 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 1813 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.
 Winter '14

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