Computers and Technology, 19.12.2019 02:31 cxttiemsp021

Consider the addition of the dummy variables classmidsize and classlarge to the simple linear regression model in part (a). the value of classmidsize is 1 if the car is a midsize car and 0 otherwise; the value of classlarge is 1 if the car is a large car and 0 otherwise. thus, for a compact car, the value of classmidsize and the value of classlarge are both 0. develop the estimated regression equation that can be used to predict the fuel efficiency for highway driving, given the engine's displacement and the dummy variables classmidsize and classlarge. let x1 represent engine's displacement. let x2 represent variable classmidsize. let x3 represent variable classlarge. if required, round your answers to four decimal places. for subtractive or negative numbers use a minus sign even if there is a + sign before the blank. (example: -300) = + x1 + x2 + x3 how much of the variation in the sample values of hwympg does this estimated regression equation explain? if required, round your answer to two decimal places. %

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Consider the addition of the dummy variables classmidsize and classlarge to the simple linear regres...

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