Question: 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

a. Use simple linear regression analysis to

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. ForJanuary, let X=1; for February, let X=2; and so on.

The forecasting model is given by the equation Y = __+__X. (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.)

Forecast for the number of oil changes:

September: ____

October: ____

November: ___

Demand for oil changes at Garcia's Garage has been as follows: Month January February March April May Number of Oil Changes 35 38 62 54 68 52 55 68 June July August

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