The Questor Corporation has experienced the following sales pattern over a 10-year period:
![628_07b78a13-bab5-4fab-9cbd-4d8e247d576a.png](https://secure.tutorsglobe.com/CMSImages/628_07b78a13-bab5-4fab-9cbd-4d8e247d576a.png)
a. Compute the equation of a trend line (similar to Equation 5.4) for these sales data to forecast sales for the next year. (Let 1997 = 0, 1998 = 1, etc., for the time variable.) What does this equation forecast for sales in the year 2007?