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The following data are quarterly sales of engine oil (in thousands of gallons) in the Montreal region. The CMA method provided the following seasonal relatives:

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The following data are quarterly sales of engine oil (in thousands of gallons) in the Montreal region. The CMA method provided the following seasonal relatives: The linear trend is observed and the following linear trend equation is obtained based on the deseasonalized data: Yt=17.20.535t Extend the model to forecast the sales of engine oil in 2022

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