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A corporation has asked you to prepare some multiple regression equations to estimate the effect of variables on fuel economy. The data for this study

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A corporation has asked you to prepare some multiple regression equations to estimate the effect of variables on fuel economy. The data for this study are shown below, and the dependent variable is miles per gallon. Complete parts a and b. Miles 43.2 36.6 32.5 39.5 36.8 19.8 19.6 20.1 19.3 20.6 Horsepower 49 69 51 71 61 109 143 138 104 95 Weight 1995 1890 1995 2095 1890 3370 3765 3575 3175 2720 a. Prepare a regression equation that uses vehicle horsepower and vehicle weight as independent variables. Let x, be defined as horsepower and X, be defined as weight. (Round to four decimal places as needed.)

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