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# A random sample of the price of 10 computers was

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Unformatted text preview: lected 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): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121, 45, 130, 118 What is mean? A. 114.15 B. 118 C. 148 D. 45 E. 115.5 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Central Tendency 38. 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): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121, 45, 130, 118 What is the median? A. 114.15 B. 118 C. 148 D. 45 E. 115.5 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Central Tendency 1-178 Chapter 01 - An Introduction to Business Statistics 39. 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): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121, 45, 130, 118 What is the mode? A. 114.15 B. 118 C. 148 D. 45 E. 115.5 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Central Tendency 40. 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. 378, 361, 350, 375, 200, 391, 375, 368, 321 What is the mean? A. 375 B. 368 C. 389.9 D. 200 E. 346.6 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Central Tendency 1-179 Chapter 01 - An Introduction to Business Statistics 41. 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. 378, 361, 350, 375, 200, 391, 375, 368, 321 What is the median? A. 375 B. 368 C. 389.9 D. 200 E. 346.6 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Central Tendency 42. 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. 378, 361, 350, 375, 200, 391, 375, 368, 321 What is the mode? A. 375 B. 368 C. 389.9 D. 200 E. 346.6 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Central Tendency 1-180 Chapter 01 - An Introduction to Business Statistics 43. Find the coefficient of variation for IQ tests with a mean of 100 and a standard deviation of 15. A. 15.0 B. 6.7 C. 0.15 D. 1.5 E. 67 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Variability 44. Find the z-score for an IQ test score of 142 when the mean is 100 and the standard deviation is 15. A. 42 B. 2.8 C. 18.78 D. 1.27 E. -2.8 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 45. Find the z-score for an IQ test score of 92 when the mean is 100 and the standard deviation is 15. A. 0.53 B. 0.77 C. -0.77 D. -0.53 E. -8.00 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 1-181 Chapter 01 - An Introduction to Business Statistics 46. Find the z-score for an IQ test score of 118 when the mean is 100 and the standard deviation is 15. A. 1.2 B. 1.0 C. 18.0 D. -1.03 E. -1.2 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 47. Find the z-score for an IQ test score of 125 when the mean is 100 and the standard deviation is 15. A. 25 B. 1.1 C. 1.67 D. -1.1 E. -1.67 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 48. Using Chebyshev's Rule, find the interval that contains at least 93.75% of all measurements when mean = 2.549 and s = 1.828. A. [-2.935 8.033] B. [-1.107 6.205] C. [-26.699 31.797] D. [2.435 2.663] E. [-4.763 9.861] AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Chebyshev's Theorem 1-182 Chapter 01 - An Introduction to Business Statistics 49. According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an average of 413 minutes a day on the job. Suppose the standard deviation is 26.8 minutes and the time spent is approximately a normal distribution. What are the times that approximately 68.26% of all workers will fall? A. [394.8 431.2] B. [386.2 439.8] C. [372.8 453.2] D. [359.4 466.6] E. [332.6 493.4] AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Empirical Rule 50. According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an average of 413 minutes...
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