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Wisconsin is an important milk-producing state. Some people might argue that because of transportation costs, the cost of milk increases with the distance of markets
Wisconsin is an important milk-producing state. Some people might argue that because of transportation costs, the cost of milk increases with the distance of markets from Wisconsin. Suppose the milk prices in eight cities are as follows. Cost of Distance from Milk Madison (per gallon} (miles) $2.64 1,245 2.31 425 2.45 1,346 2.52 973 2.19 255 2.55 865 2.40 1,080 2.37 296 a. Use the prices along with the distance of each cityfrom Madison,Wisconsin, to develop a regression line to predict the price of a gallon of milk by the number of miles the city is from Madison. (Do not round the intermediate values. Round your answers to 5 decimal places.) A y= + x b. Use the data and the regression equation to compute residuals for this model. {Do not round the intermediate values. Round your answers to 4 decimal places.) Cost of Distance from Milk Madison (per gallon) (miles) {y 3?) $2.64 1,245 2.31 425 2.45 1,346 2.52 973 2.19 255 2.55 865 2.40 1,080 2.37 296 c. Sketch a graph of the residuals in the order of the x values. 0.1 0.0 Residuals A. -0.1 400 900 1400 X 0.1 0.0 Residuals B. -0.1 400 900 1400 X 0.1 0.0 Residuals C. -0.1 400 900 1400 X
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