MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question

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Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following. Number of Rooms 12 9 14. 6 10 Kilowatt- Hours (thousands) 9 7 10 5 8 Number of Rooms 8 18 10 5 7 Standard error of estimate Kilowatt Hours (thousands) 6 8 10 4 7 a. Determine the standard error of estimate. (Round your answer to 3 decimal places.) b. Determine the coefficient of determination. (Round your answer to 2 decimal places.)
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Transcribed Image Text:Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following. Number of Rooms 12 9 14. 6 10 Kilowatt- Hours (thousands) 9 7 10 5 8 Number of Rooms 8 18 10 5 7 Standard error of estimate Kilowatt Hours (thousands) 6 8 10 4 7 a. Determine the standard error of estimate. (Round your answer to 3 decimal places.) b. Determine the coefficient of determination. (Round your answer to 2 decimal places.)
b. Determine the coefficient of determination. (Round your answer to 2 decimal places.) Coefficient of determination c. Interpret the coefficient of determination. (Round your answer to the nearest whole number.) percent of the variation in kilowatt-hours can be explained by the variation in the number of rooms.
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Transcribed Image Text:b. Determine the coefficient of determination. (Round your answer to 2 decimal places.) Coefficient of determination c. Interpret the coefficient of determination. (Round your answer to the nearest whole number.) percent of the variation in kilowatt-hours can be explained by the variation in the number of rooms.
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Step 1: State the given information.
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Step 2: Calculate the value of standard error of estimate.
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Step 3: Calculate the value of the coefficient of determination.
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Step 4: Interpret the coefficient of determination.
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