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A 566 b 1078 c 681 d 963 aacsb analytical studies

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Unformatted text preview: or 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 at least 10 minutes? A. .9938 B. .8944 C. .1056 D. .0062 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Normal Distribution 1-520 Chapter 01 - An Introduction to Business Statistics 120. 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 no more than 22 minutes? A. .1587 B. .9977 C. .8413 D. .0023 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Normal Distribution 121. 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. Suppose that in an effort to provide better service to the public, the director of the local office is permitted to provide discounts to those individuals whose waiting time exceeds a predetermined time. The director decides that 15% of the customers should receive this discount. What are the numbers of minutes they need to wait to receive the discount? A. 34.48 B. 21.68 C. 38.32 D. 25.52 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Normal Distribution 1-521 Chapter 01 - An Introduction to Business Statistics 122. 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. Complete the following statement: Only 20% of the individuals wait less than _____ minutes. A. 36.72 B. 23.28 C. 34.63 D. 25.37 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Normal Distribution 123. A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9. What is the probability of getting a grade of 91 or less on this exam? A. 1.00 B. 0.50 C. 0.0073 D. .9927 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Normal Distribution 1-522 Chapter 01 - An Introduction to Business Statistics 124. A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9. What percentage of students scored between 65 and 89? A. .6568 B. 1.000 C. .9868 D. .3300 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Normal Distribution 125. A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9. What percentage of students scored between 81 and 89? A. .0668 B. .0132 C. .0536 D. .0529 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Normal Distribution 1-523 Chapter 01 - An Introduction to Business Statistics 126. A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9. Only 5% of the students taking the test scored higher than what grade? A. 70.04 B. 67.96 C. 55.48 D. 82.52 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Normal Distribution 127. A manufacturer of personal computers sets tests competing brands and finds that the amounts of energy they require are normally distributed with a mean of 285 kwh and a standard deviation of 9.1 kwh. If the lowest 25% and the highest 30% are not included in a second round of tests, what are the upper and lower limits for the energy amounts of the remaining sets? A. [269.76 300.24] B. [269.76 289.78] C. [280.22 289.78] D. [280.22 300.24] AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Normal Distribution 1-524 Chapter 01 - An Introduction to Business Statistics 128. While conducting experiments, a marine biologist selects water depths from a uniformly distributed collection that vary between 2.00 m and 7.00 m. What is the probability that a randomly selected depth is less than 3.60 m? A. .72 B. .80 C. .46 D. .32 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Uniform Distribution 129. While conducting experiments, a marine biologist selects water depths from a uniformly distributed collection that vary between 2.00 m and 7.00 m. What is the probability that a randomly selected depth is between 2.25 m and 5.00 m? A. .79 B. .45 C. .55 D. .50 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Uniform Distribution 1-525 Chapter 01 - An Introduction to Business Statistics 130. While conducting experiments, a marine biologist...
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This document was uploaded on 01/20/2014.

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