Question: Demand for oil changes at Garcia's Garage has been as follows: a. Use simple linear regression analysis to develop a forecasting model for monthly demand.

Demand for oil changes at Garcia's Garage has

Demand for oil changes at Garcia's Garage has been as follows: a. Use simple linear regression analysis to develop a forecasting model for monthly demand. In this application, the dependent variable, Y, is monthly demand and the independent variable, X, is the month. For January, let X=1; for February, let X=2; and so on. The forecasting model is given by the equation Y=34.86+3.14X. (Enter your responses rounded to two decimal places.) b. Use the model to forecast demand for September, October, and November. Here, X=9,10, and 11, respectively. (Enter your responses rounded to two decimal places.)

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