Gibson, Inc. is a holding company that owns several businesses. One such business is a truck sales company. To help in managing this operation, managers at Gibson have collected sales data for the past 20 years showing the number of trucks sold each year. They have then developed the linear trend forecasting model shown as follows: 
Based on this information, the fitted value for year 1 is about 99.
Definitions:
Product Cost
The total of costs directly tied to the production of a product, including raw material, labor, and overhead.
Oil Lubricants
Substances applied to reduce friction and wear between surfaces in mutual contact, which ultimately extends the life of machinery.
Factory Plant
A facility where industrial or manufacturing processes occur, often including buildings and machinery.
Factory Overhead
Costs incurred in the production process that cannot be directly linked to specific products, such as maintenance, utilities, and salaried personnel.
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