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Determine the Least Squares Trend Equation and Seasonal Index

3. The following table gives the annual amount of scrap produced by Machine Products, Inc.

(See attachment for chart)

Determine the least squares trend equation. Estimate the amount of scrap for the year 2003.

4. Victor Anderson, the owner of Anderson Belts, Inc., is studying absenteeism among his employees. His workforce is small, consisting of only five employees. For the last three years he recorded the following number of employee absences, in days, for each quarter.

(See attachment for chart)

Determine a typical seasonal index for each of the four quarters.


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