, 02.12.2019 23:20

# Use the car data. run a multiple regression analysis to predict mpg using independent variables weight, drive_ratio, horsepower. mpg weight drive_ratio horsepower 16.9 4.36 2.73 155 15.5 4.054 2.26 142 19.2 3.605 2.56 125 18.5 3.94 2.45 150 30 2.155 3.7 68 27.5 2.56 3.05 95 27.2 2.3 3.54 97 30.9 2.23 3.37 75 20.3 2.83 3.9 103 17 3.14 3.5 125 21.6 2.795 3.77 115 16.2 3.41 3.58 133 20.6 3.38 2.73 105 20.8 3.07 3.08 85 18.6 3.62 2.71 110 18.1 3.41 2.73 120 17 3.84 2.41 130 17.6 3.725 2.26 129 16.5 3.955 2.26 138 18.2 3.83 2.45 135 26.5 2.585 3.08 88 21.9 2.91 3.08 109 34.1 1.975 3.73 65 35.1 1.915 2.97 80 27.4 2.67 3.08 80 31.5 1.99 3.78 71 29.5 2.135 3.05 68 28.4 2.67 2.53 90 28.8 2.595 2.69 115 26.8 2.7 2.84 115 33.5 2.556 2.69 90 34.2 2.2 3.37 70 31.8 2.02 3.7 65 37.3 2.13 3.1 69 30.5 2.19 3.7 78 22 2.815 3.7 97 21.5 2.6 3.64 110 31.9 1.925 3.78 71 a. find the p-value of the overall model. ( input a decimal value; input 0 or 0.0001 if it is smaller than 0.0001 ) b. find the p-value for variable horsepower.

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