Unformatted text preview: lected 13 patrons and had them get in line
between 2 and 3 p.m. Each was given a stop watch to record the time they spent in line. The
times recorded were as follows (in minutes): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121,
45, 130, 118
What is mean?
A. 114.15
B. 118
C. 148
D. 45
E. 115.5 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Central Tendency 38. The local amusement park was interested in the average wait time at their most popular
roller coaster at the peak park time (2 p.m.). They selected 13 patrons and had them get in line
between 2 and 3 p.m. Each was given a stop watch to record the time they spent in line. The
times recorded were as follows (in minutes): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121,
45, 130, 118
What is the median?
A. 114.15
B. 118
C. 148
D. 45
E. 115.5 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Central Tendency 1178 Chapter 01  An Introduction to Business Statistics 39. The local amusement park was interested in the average wait time at their most popular
roller coaster at the peak park time (2 p.m.). They selected 13 patrons and had them get in line
between 2 and 3 p.m. Each was given a stop watch to record the time they spent in line. The
times recorded were as follows (in minutes): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121,
45, 130, 118
What is the mode?
A. 114.15
B. 118
C. 148
D. 45
E. 115.5 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Central Tendency 40. Quality control is an important issue at ACME Company which manufactures light bulbs.
In order to conduct testing of the life hours of their light bulbs, they randomly sampled nine
light bulbs and measured how many hours they lasted. 378, 361, 350, 375, 200, 391, 375, 368,
321
What is the mean?
A. 375
B. 368
C. 389.9
D. 200
E. 346.6 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Central Tendency 1179 Chapter 01  An Introduction to Business Statistics 41. Quality control is an important issue at ACME Company which manufactures light bulbs.
In order to conduct testing of the life hours of their light bulbs, they randomly sampled nine
light bulbs and measured how many hours they lasted. 378, 361, 350, 375, 200, 391, 375, 368,
321
What is the median?
A. 375
B. 368
C. 389.9
D. 200
E. 346.6 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Central Tendency 42. Quality control is an important issue at ACME Company which manufactures light bulbs.
In order to conduct testing of the life hours of their light bulbs, they randomly sampled nine
light bulbs and measured how many hours they lasted. 378, 361, 350, 375, 200, 391, 375, 368,
321
What is the mode?
A. 375
B. 368
C. 389.9
D. 200
E. 346.6 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Central Tendency 1180 Chapter 01  An Introduction to Business Statistics 43. Find the coefficient of variation for IQ tests with a mean of 100 and a standard deviation
of 15.
A. 15.0
B. 6.7
C. 0.15
D. 1.5
E. 67 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Variability 44. Find the zscore for an IQ test score of 142 when the mean is 100 and the standard
deviation is 15.
A. 42
B. 2.8
C. 18.78
D. 1.27
E. 2.8 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 45. Find the zscore for an IQ test score of 92 when the mean is 100 and the standard
deviation is 15.
A. 0.53
B. 0.77
C. 0.77
D. 0.53
E. 8.00 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 1181 Chapter 01  An Introduction to Business Statistics 46. Find the zscore for an IQ test score of 118 when the mean is 100 and the standard
deviation is 15.
A. 1.2
B. 1.0
C. 18.0
D. 1.03
E. 1.2 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 47. Find the zscore for an IQ test score of 125 when the mean is 100 and the standard
deviation is 15.
A. 25
B. 1.1
C. 1.67
D. 1.1
E. 1.67 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 48. Using Chebyshev's Rule, find the interval that contains at least 93.75% of all
measurements when mean = 2.549 and s = 1.828.
A. [2.935 8.033]
B. [1.107 6.205]
C. [26.699 31.797]
D. [2.435 2.663]
E. [4.763 9.861] AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Chebyshev's Theorem 1182 Chapter 01  An Introduction to Business Statistics 49. According to a survey of the top 10 employers in a major city in the Midwest, a worker
spends an average of 413 minutes a day on the job. Suppose the standard deviation is 26.8
minutes and the time spent is approximately a normal distribution.
What are the times that approximately 68.26% of all workers will fall?
A. [394.8 431.2]
B. [386.2 439.8]
C. [372.8 453.2]
D. [359.4 466.6]
E. [332.6 493.4] AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Empirical Rule 50. According to a survey of the top 10 employers in a major city in the Midwest, a worker
spends an average of 413 minutes...
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 Winter '14
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