Question: Question 1 Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table: Year 1
Question 1
Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table:
| Year
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| Registrations (000) |
4 |
6 |
4 |
5 |
10 |
8 |
7 |
9 |
12 |
14 |
15 |
a) Develop a 3-year moving average to forecast registrations from year 4 to year 12.
b) Estimate demand again for years 4 to 12 with a 3-year weighted moving average in which registrations in the most recent year are given a weight of 2, and registrations in the other 2 years are each given a weight of 1.
c) Graph the original data and the two forecasts. Which of the two forecasting methods seems better?
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