Question: The number of rolls of film processed each quarter by a one-hour photo finishing shop has been recorded for the last four years.

Quarter Year 1 Year 2 Year 3 Year 4

1 942 1006 1109 1243

2 853 893 946 1067

3 896 947 962 1102

4 915 981 1051 1177

For 5 points each, answer the following questions:

1. Graph the time series. Does a linear trend appear?
2. Develop the equation for the linear trend component for the time series (Trend Projection only, calculating seasonal components are not required).
3. Use the linear trend developed in part (b) to prepare a forecast for sales in year 5.

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Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document