The following information has been collected on the sales of greeting cards for the past 6 weeks.
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Question:
Week | Sales ($) |
1 | 85 |
2 | 90 |
3 | 95 |
4 | 110 |
5 | 105 |
6 | 115 |
- Develop a linear trend equation that can be used to forecast sales of greeting cards
- Use the linear trend equation developed in part A to forecast sales for week 7.
- Forecast the sales for week 7 using a three period weighted moving average with weights of 0.6 (week 6), 0.3 (week 5) and 0.1 (week 4).
- Compare and explain why the results in parts B and C are different.
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