Question: Use data from the first 5 periods in below table and plot the control chart with 2s limits. Period Demand Forecast 1 128 124 2
Use data from the first 5 periods in below table and plot the control chart with 2s limits.
| Period | Demand | Forecast |
| 1 | 128 | 124 |
| 2 | 117 | 128 |
| 3 | 120 | 117 |
| 4 | 119 | 120 |
| 5 | 126 | 119 |
| 6 | 122 | 126 |
| 7 | 117 | 122 |
| 8 | 123 | 117 |
| 9 | 121 | 123 |
| 10 | 124 | 121 |
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