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A random sample of records of electricity usage of homes in the month of July gives the amount of electricity used and size (in square feet) of 135 homes. A regression was done to predict the amount of electricity used (in kilowatt-hours) (y) from size (x). The residuals plot indicated that a linear model is appropriate. The model is y = 0.2x + 1271. How much electricity would you predict would be used in a house that is 2471 square feet?

A random sample of records of electricity usage of homes in the month of July gives the amount of electricity used and size (in square feet) of 135 homes. A regression was done to predict the amount of electricity used (in kilowatt-hours) (y) from size (x). The residuals plot indicated that a linear model is appropriate. The model is y = 0.2x + 1271. How much electricity would you predict would be used in a house that is 2471 square feet?

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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3 Use the regression line to make the appropriate prediction. A random sample of records of electricity usage of homes in the month of July gives the amount of electricity used and size (in square feet) of 135 homes. A regression was done to predict the amount of electricity used (in kilowatt-hours) (y) from size (x). The residuals plot indicated that a linear model is appropriate. The model is y = 0.2x + 1271. How much electricity would you predict would be used in a house that is 2471 square feet? 494.2 kilowatt-hours 1765.2 kilowatt-hours 3742.2 kilowatt-hours 6000.00 kilowatt-hours O 776.8 kilowatt-hours
Transcribed Image Text:3 Use the regression line to make the appropriate prediction. A random sample of records of electricity usage of homes in the month of July gives the amount of electricity used and size (in square feet) of 135 homes. A regression was done to predict the amount of electricity used (in kilowatt-hours) (y) from size (x). The residuals plot indicated that a linear model is appropriate. The model is y = 0.2x + 1271. How much electricity would you predict would be used in a house that is 2471 square feet? 494.2 kilowatt-hours 1765.2 kilowatt-hours 3742.2 kilowatt-hours 6000.00 kilowatt-hours O 776.8 kilowatt-hours
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