Unformatted text preview: tentially dangerous?
A. 0.47
B. 0.72
C. 0.28
D. 0.50 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Uniform Distribution 1514 Chapter 01  An Introduction to Business Statistics 108. At an oceanside nuclear power plant, seawater is used as part of the cooling system.
This raises the temperature of the water that is discharged back into the ocean. The amount
that the water temperature is raised has a uniform distribution over the interval from 10 to
25ºC.
What is the expected value of the temperature increase?
A. 7.50
B. 4.33
C. 17.50
D. 10.12 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Uniform Distribution 109. At an oceanside nuclear power plant, seawater is used as part of the cooling system.
This raises the temperature of the water that is discharged back into the ocean. The amount
that the water temperature is raised has a uniform distribution over the interval from 10 to
25ºC.
What is the standard deviation of the temperature increase?
A. 10.12
B. 4.33
C. 7.50
D. 1.25 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Uniform Distribution 1515 Chapter 01  An Introduction to Business Statistics 110. During the past six months, 73.2% of US households purchased sugar. Assume that these
expenditures are approximately normally distributed with a mean of $8.22 and a standard
deviation of $1.10.
Find the probability that a household spent less than $5.00
A. .9983
B. 0.000
C. 1.00
D. 0.0017 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 111. During the past six months, 73.2% of US households purchased sugar. Assume that these
expenditures are approximately normally distributed with a mean of $8.22 and a standard
deviation of $1.10.
Find the probability that a household spent more than $10.00
A. .7320
B. .9474
C. .0526
D. .2680 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 1516 Chapter 01  An Introduction to Business Statistics 112. During the past six months, 73.2% of US households purchased sugar. Assume that these
expenditures are approximately normally distributed with a mean of $8.22 and a standard
deviation of $1.10.
Find the probability that a household spent more than $16.00
A. 1.00
B. 0.00
C. 0.50
D. 0.98 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 113. During the past six months, 73.2% of US households purchased sugar. Assume that these
expenditures are approximately normally distributed with a mean of $8.22 and a standard
deviation of $1.10. What proportion of the households spent between $5.00 and $9.00?
A. .7611
B. .7628
C. .0017
D. .7594 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Normal Distribution 1517 Chapter 01  An Introduction to Business Statistics 114. During the past six months, 73.2% of US households purchased sugar. Assume that these
expenditures are approximately normally distributed with a mean of $8.22 and a standard
deviation of $1.10. 99% of the households spent less than what amount?
A. $5.66
B. $10.78
C. $6.81
D. $9.63 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 115. During the past six months, 73.2% of US households purchased sugar. Assume that these
expenditures are approximately normally distributed with a mean of $8.22 and a standard
deviation of $1.10. 80% of the households spent more than what amount?
A. $7.30
B. $7.38
C. $9.06
D. $9.14 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Normal Distribution 1518 Chapter 01  An Introduction to Business Statistics 116. Suppose that the times required for a cable company to fix cable problems in its
customers' homes are uniformly distributed between 40 minutes and 65 minutes.
What is the probability that a randomly selected cable repair visit will take at least 50
minutes?
A. .77
B. .40
C. .60
D. .23 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Uniform Distribution 117. Suppose that the times required for a cable company to fix cable problems in its
customers' homes are uniformly distributed between 40 minutes and 65 minutes.
What is the probability that a randomly selected cable repair visit falls within 2 standard
deviations of the mean?
A. 0.75
B. 1.00
C. 0.58
D. 0.86 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Uniform Distribution 1519 Chapter 01  An Introduction to Business Statistics 118. Suppose that the waiting time for a license plate renewal at a local office of a state motor
vehicle department has been found to be normally distributed with a mean of 30 minutes and
a standard deviation of 8 minutes. What is the probability that a randomly selected individual
will have a waiting time between 15 and 45 minutes?
A. 1.00
B. .9699
C. .5000
D. .9398 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 119. Suppose that the waiting time f...
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 Winter '14
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