Question: The Questor Corporation has experienced the following sales pattern over a ten-year period:

1. Compute the equation of a trend line (similar to Equation 5.5) for these sales data to forecast sales for the next year. (Let \(1990=0,1991=1\), etc., for the time variable.) What does this equation forecast for sales in the year 2000 ?
2. Use a first-order exponential smoothing model with a \(w\) of $0.9$ to forecast sales for the year 2000 .

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