Using chebyshevs rule find the interval that contains

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Unformatted text preview: 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 95.44% of all workers will fall? A. [387.5 438.5] 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 1-183 Chapter 01 - An Introduction to Business Statistics 51. 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 99.73% of all workers will fall? A. [305.8 520.2] 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 52. According to Chebyshev's Theorem, at least what proportion of the data will be within for: k = 2 A. 68% B. 50% C. 25% D. 75% E. 34% AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Chebyshev's Theorem 53. According to Chebyshev's Theorem, at least what proportion of the data will be within for: k = 2.5 A. 16% B. 40% C. 68% D. 60% E. 84% AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Chebyshev's Theorem 1-184 Chapter 01 - An Introduction to Business Statistics 54. According to Chebyshev's Theorem, at least what proportion of the data will be within for: k = 1.6 A. 39% B. 58% C. 68% D. 61% E. 92% AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Chebyshev's Theorem 55. According to Chebyshev's Theorem, at least what proportion of the data will be within for: k = 3.2 A. 90% B. 95% C. 84% D. 97% E. 10% AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Chebyshev's Theorem 56. According to Chebyshev's theorem, how many standard deviations from the range would include at least 80% of the values? A. 5.0 B. 2.2 C. 2.5 D. 1.6 E. 2.0 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Chebyshev's Theorem 1-185 Chapter 01 - An Introduction to Business Statistics 57. In a statistic class, 10 scores were randomly selected with the following results were obtained (mean = 71.5): 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 What is the range? A. 22.72 B. 12.00 C. 4.77 D. 516.20 E. 144.00 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Variability 58. In a statistic class, 10 scores were randomly selected with the following results were obtained (mean = 71.5): 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 What is the variance? A. 22.72 B. 12.00 C. 4.77 D. 516.20 E. 144.00 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 59. In a statistic class, 10 scores were randomly selected with the following results were obtained (mean = 71.5): 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 What is the standard deviation? A. 22.72 B. 12.00 C. 4.77 D. 516.20 E. 144.00 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 1-186 Chapter 01 - An Introduction to Business Statistics 60. In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are (mean = 70): 68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68 What is the range? A. 18 B. 4.73 C. 22.40 D. 324 E. 6.76 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Variability 61. In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are (mean = 70): 68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68 What is the variance? A. 18 B. 4.73 C. 22.40 D. 324 E. 6.76 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 62. In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are (mean = 70): 68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68 What is the standard deviation? A. 18 B. 4.73 C. 22.40 D. 324 E. 6.76 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 1-187 Chapter 01 - An Introduction to Business Statistics 63. 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 What is the range? A. 1359 B. 4993 C. 1846575 D. 3587 E. 1976454 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Variability 64. 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 What is the variance? A. 1359 B. 4993 C. 1846575 D. 3587 E. 1976454 AACSB: Analytical Studies Bloo...
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