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86 105 130 160 180 195 133 145 214 105 145 152 151 135 87 99 92 119 129 S= USE SALT (a) Calculate the sample variance and standard deviation. (Round your answers to four decimal places.) min2 min (b) If the observations were reexpressed in hours, what would be the resulting values of the sample variance and sample standard deviation? Answer without actually performing the reexpression. (Round your answer to four decimal places.) s² = hr² S= hr

86 105 130 160 180 195 133 145 214 105 145 152 151 135 87 99 92 119 129 S= USE SALT (a) Calculate the sample variance and standard deviation. (Round your answers to four decimal places.) min2 min (b) If the observations were reexpressed in hours, what would be the resulting values of the sample variance and sample standard deviation? Answer without actually performing the reexpression. (Round your answer to four decimal places.) s² = hr² S= hr

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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An article reported the following data on oxidation-induction time (min) for various commercial oils: 86 105 130 160 180 195 133 145 214 105 145 152 151 135 87 99 92 119 129 (a) Calculate the sample variance and standard deviation. (Round your answers to four decimal places.) s² = USE SALT S= (b) If the observations were reexpressed in hours, what would be the resulting values of the sample variance and sample standard deviation? Answer without actually performing the reexpression. (Round your answer to four decimal places.) 5² = | hr² hr S= min² min
Transcribed Image Text:An article reported the following data on oxidation-induction time (min) for various commercial oils: 86 105 130 160 180 195 133 145 214 105 145 152 151 135 87 99 92 119 129 (a) Calculate the sample variance and standard deviation. (Round your answers to four decimal places.) s² = USE SALT S= (b) If the observations were reexpressed in hours, what would be the resulting values of the sample variance and sample standard deviation? Answer without actually performing the reexpression. (Round your answer to four decimal places.) 5² = | hr² hr S= min² min
A woman sued a computer keyboard manufacturer, charging that her repetitive stress injuries were caused by the keyboard. The injury awarded about $3.5 million for pain and suffering, but the court then set aside that award as being unreasonable compensation. In making this determination, the court identified a "normative" group of 27 similar cases and specified a reasonable award as one within two standard deviations of the mean of the awards in the 27 cases. The 27 awards were (in $1000s) 37, 62, 73, 113, 138, 141, 148, 153, 238, 290, 340, 410, 600, 750, 750, 751, 1050, 1100, 1137, 1150, 1200, 1200, 1250, 1579, 1700, 1825, and 2000, from which Ex, = 20,185, Ex² = 24,665,129. What is the maximum possible amount that could be awarded under the two-standard-deviation rule? In other words, what is the value of x + 2s? (Round your answer to the nearest whole number.) 1961163 X thousand dollars
Transcribed Image Text:A woman sued a computer keyboard manufacturer, charging that her repetitive stress injuries were caused by the keyboard. The injury awarded about $3.5 million for pain and suffering, but the court then set aside that award as being unreasonable compensation. In making this determination, the court identified a "normative" group of 27 similar cases and specified a reasonable award as one within two standard deviations of the mean of the awards in the 27 cases. The 27 awards were (in $1000s) 37, 62, 73, 113, 138, 141, 148, 153, 238, 290, 340, 410, 600, 750, 750, 751, 1050, 1100, 1137, 1150, 1200, 1200, 1250, 1579, 1700, 1825, and 2000, from which Ex, = 20,185, Ex² = 24,665,129. What is the maximum possible amount that could be awarded under the two-standard-deviation rule? In other words, what is the value of x + 2s? (Round your answer to the nearest whole number.) 1961163 X thousand dollars
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