The following are multivariate summary statistics for three major sources of energy consumed collected from a...
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The following are multivariate summary statistics for three major sources of energy consumed collected from a random sample of 31 households; petroleum (X1), natural gas (X₂) and hydroelectricity (X3), which are recorded in quadrillions (105) of British Thermal Units (BTUS) 0.8 X= 0.5 0.4 [0.9 0.7 0.2] S 0.7 0.6 0.1 0.2 0.1 0.2 You are required to interpret the data by calculating: a) [10 marks] The mean and variance of the total consumption for these major sources. [Hint: use the idea of linear combination] b) [5 marks] From the given information, determine the mean and variance of excess petroleum consumed over natural gas. c) [5 marks] Generalized standardized variance, |R| d) [5 marks] Volume of the energy consumed from different sources. The following are multivariate summary statistics for three major sources of energy consumed collected from a random sample of 31 households; petroleum (X1), natural gas (X₂) and hydroelectricity (X3), which are recorded in quadrillions (105) of British Thermal Units (BTUS) 0.8 X= 0.5 0.4 [0.9 0.7 0.2] S 0.7 0.6 0.1 0.2 0.1 0.2 You are required to interpret the data by calculating: a) [10 marks] The mean and variance of the total consumption for these major sources. [Hint: use the idea of linear combination] b) [5 marks] From the given information, determine the mean and variance of excess petroleum consumed over natural gas. c) [5 marks] Generalized standardized variance, |R| d) [5 marks] Volume of the energy consumed from different sources.
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The given image provides multivariate summary statistics for three major sources of energy petroleum X1 natural gas X2 and hydroelectricity X3 We have the means vector for the three sources and the co... View the full answer
Related Book For
Cornerstones of Financial and Managerial Accounting
ISBN: 978-1111879044
2nd edition
Authors: Rich, Jeff Jones, Dan Heitger, Maryanne Mowen, Don Hansen
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