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Unformatted text preview: _. A. Standard deviation B. Mean C. Variance D. Median E. Range AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Variability 1-216 Chapter 01 - An Introduction to Business Statistics 122. A(n) _____ process is able to consistently produce outputs that meet specifications. A. in control B. capable C. normal D. statistically average E. constant AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Statistical Process 123. The difference between the largest and smallest measurements in a population or sample is the _____. A. Mean B. Median C. Range D. Variance E. Standard deviation AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Easy Topic: Variability 124. If the mean is greater than the median, then the distribution is _____. A. skewed right B. skewed left C. symmetrical D. bi-model AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Central Tendency 1-217 Chapter 01 - An Introduction to Business Statistics 125. The point estimate of the _______________ is the positive square root of the sample variance. A. sample mean B. sample standard deviation C. range D. median E. population standard deviation AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Variability 126. Getting a process into statistical control does not guarantee that the process is capable of _____. A. Remaining in control B. Having no outliers C. Meeting specifications D. A & C E. none of the above AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Statistical Process 127. The ____________________ is a quantity that measures the variation of a population or sample relative to its mean. A. Mean B. Standard deviation C. Range D. Coefficient of variation E. Z-score AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Variability 1-218 Chapter 01 - An Introduction to Business Statistics 128. Compute the population variance of the data: 16,18,23,21,17,16,24,23,9,17,11,16,22,10,15,14. A. 21.9 B. 3.87 C. 20.5 D. 17.0 E. 3.625 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 129. If the median of a data set is 760 and the upper quartile is 950, and the lower quartile is 650, what is the interquartile range? A. 300 B. 190 C. 110 D. 150 E. 910 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Box & Whiskers Plot 1-219 Chapter 01 - An Introduction to Business Statistics 130. Given a set of data with a mean of 150 and a standard deviation of 20. Using Chebyshev's Theorem, what is the minimum percentage of data between 110 and 190? A. 95.44% B. 93.75% C. 68.26% D. 75.00% E. 98.75% AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Chebyshev's Theorem 131. Compute the sample standard deviation of the data set 6,4,2,1,4,1 A. 1.83 B. 2.00 C. 1.41 D. 3.33 E. 4.00 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 1-220 Chapter 01 - An Introduction to Business Statistics 132. If 50 of 500 sampled customers said they would make a purchase of a new TV set, what is the sample proportion? A. .10 B. .20 C. .15 D. .25 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Proportion 133. Which of these are important properties of any data set? A. outliers B. variation C. shape D. B & C E. none of the above AACSB: Reflective Thinking Bloom's: Evaluation Difficulty: Hard Topic: Descriptive Statistics 134. If specifications are (1.6, 1.8), and a 99.73 percent tolerance interval is (1.62, 1.83), is the process capable? A. Yes, always B. Yes, 99.73% of the time C. No AACSB: Analytical Studies Bloom's: Comprehension Difficulty: Medium Topic: Statistical Process 1-221 Chapter 01 - An Introduction to Business Statistics 135. The average lateness for one of the top airline companies is 10 minutes. The variance of the lateness measure is calculated as 9. An airplane arrived 13 minutes after the stated arrival time. Calculate the Z-score for this particular airplane's lateness. A. 0.33 B. 0.58 C. 1.33 D. 0.44 E. 1.00 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Variability 136. The average life of Canadian women is 73.75 years and the standard deviation of the women's life expectancy in Canada is 6.5 years. Using the Chebyshev's theorem, determine the minimum percentage of women in Canada whose life expectancy is between 64 and 83.5 years. A. 93.17% B. 68.26% C. 55.56% D. 88.89% E. 33.33% AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Chebyshev's Theorem 1-222 Chapter 01 - An Introduction to Business Statistics 137. The average life of Canadian women is 73.75 years and the standard deviation of the women's life expectancy in Canada is 6.5 years. Based on Chebyshev's inequality determine the upper and lower bounds on the average life expectancy of the Canadian women such that at least 90% of all population is included. A. [12.09 135.41] B. [8.75 138.75] C. [...
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