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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 1-514 Chapter 01 - An Introduction to Business Statistics 108. At an ocean-side 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 ocean-side 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 1-515 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 1-516 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 1-517 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 1-518 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 1-519 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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