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121.What is the range?
A. 3
B. 4
C. 1.291
D. 1.667
E. 2.779
122.What is the variance?
A. 3
B. 4
C. 1.291
D. 1.667
E. 2.779
123.What is the standard
deviation?
A. 3
B. 4
C. 1.291
D. 1.667
E. 2.779
Use the following to answer
questions 124-126:
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
124.What is the range?
A. 1359
B. 4993
C. 1846575
D. 3587
E. 1976454
125.What is the variance?
A. 1359
B. 4993
C. 1846575
D. 3587
E. 1976454
126.What is the standard
deviation?
A. 1359
B. 4993
C. 1846575
D. 3587
E. 1976454
Use the following to answer
questions 127-129:
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
127.What is the range?
A. 103
B. 23.62
C. 557.97
D. 128.8
E. 115
128.What is the variance?
A. 103
B. 23.62
C. 557.97
D. 128.8
E. 115
129.What is the standard
deviation?
A. 103
B. 23.62
C. 557.97
D. 128.8
E. 115
Use the following to answer
questions 130-132:
Quality control is an important
issue at ACME Company which manufacturers 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
130.What is the range?
A. 342.43
B. 3424.3
C. 58.5
D. 191
E. 10609
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