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Unformatted text preview: m's: Application
Difficulty: Medium
Topic: Variability 1188 Chapter 01  An Introduction to Business Statistics 65. The company financial officer was interested in the average cost of PCs that had been
purchased in the past six months. A random sample of the price of 10 computers was taken
with the following results (mean = $3,213): $3,250, $1,127, $2,995, $3,250, $3,445, $3,449,
$1,482, $6,120, $3,009, $4,000
What is the standard deviation?
A. 1359
B. 4993
C. 1846575
D. 3587
E. 1976454 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 66. 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) (mean = 114.15): 118, 124, 108, 116, 99, 120,
148, 118, 119, 121, 45, 130, 118
What is the range?
A. 103
B. 23.62
C. 557.97
D. 128.8
E. 115 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Variability 1189 Chapter 01  An Introduction to Business Statistics 67. 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) (mean = 114.15): 118, 124, 108, 116, 99, 120,
148, 118, 119, 121, 45, 130, 118
What is the variance?
A. 103
B. 23.62
C. 557.97
D. 128.8
E. 115 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 68. 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) (mean = 114.15): 118, 124, 108, 116, 99, 120,
148, 118, 119, 121, 45, 130, 118
What is the standard deviation?
A. 103
B. 23.62
C. 557.97
D. 128.8
E. 115 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 1190 Chapter 01  An Introduction to Business Statistics 69. 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 (mean = 346.6). 378, 361, 350, 375,
200, 391, 375, 368, 321
What is the range?
A. 342.43
B. 3424.3
C. 58.5
D. 191
E. 10609 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Variability 70. 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 (mean = 346.6). 378, 361, 350, 375,
200, 391, 375, 368, 321
What is the variance?
A. 342.43
B. 3424.3
C. 58.5
D. 191
E. 10609 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 1191 Chapter 01  An Introduction to Business Statistics 71. 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 (mean = 346.6). 378, 361, 350, 375,
200, 391, 375, 368, 321
What is the standard deviation?
A. 342.43
B. 3424.3
C. 58.5
D. 191
E. 10609 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Variability 72. In a statistic class, 10 scores were randomly selected with the following results were
obtained: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66
What is the 90th percentile?
A. 77
B. 73
C. 74
D. 67
E. 65.9 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Percentile 1192 Chapter 01  An Introduction to Business Statistics 73. In a statistic class, 10 scores were randomly selected with the following results were
obtained: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66
What is the third quartile?
A. 65.9
B. 67.3
C. 66.75
D. 73.85
E. 77.0 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Percentile 74. In a statistic class, 10 scores were randomly selected with the following results were
obtained: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66
What is the first quartile?
A. 65.9
B. 67.3
C. 66.75
D. 73.85
E. 77.0 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Percentile 75. In a statistic class, 10 scores were randomly selected with the following results were
obtained: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66
What is the 10th percentile?
A. 65.9
B. 67.3
C. 66.75
D. 73.85
E. 77.0 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Percentile 1193 Chapter...
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This document was uploaded on 01/20/2014.
 Winter '14

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