An automotive engineer computed a least-squares regression line for predicting the gas mileage (mpg) of a certain vehicle from its speed in mph. The results are presented in the following Excel output: What is the regression equation? Intercept Speed R-Sq Coefficients 40.69 -0.22 0.588 0.22X 0.588.X Og = 40.69 O = 40.69 Oy = -0.22 +40. 69 X O 0.588 - 0.22X

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