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- Given the information you provided:
- 1. **August Usage**:
- - Forecasted: 88% of capacity
- - Actual: 89.6% of capacity
- - Smoothing constant: 0.10
- Let's calculate the forecast for September and October:
- a. **Forecast for September**:
- - Forecast for September = Previous Forecast + Smoothing Constant * (Actual August - Previous Forecast)
- Forecast for September = 88 + 0.10 * (89.6 - 88)
- Forecast for September = 88 + 0.10 * 1.6
- Forecast for September = 88 + 0.16
- Forecast for September = 88.16
- So, the forecasted usage for September is 88.16% of capacity.
- b. **Forecast for October**:
- - Actual: 43% of capacity
- - Smoothing constant: 0.10
- Now, we'll use the forecasted value from September to predict the October usage:
- Forecast for October = Forecast for September + Smoothing Constant * (Actual September - Forecast for September)
- Forecast for October = 88.16 + 0.10 * (43 - 88.16)
- Forecast for October = 88.16 - 4.487
- Forecast for October ≈ 83.67
- The forecasted usage for October is approximately 83.67% of capacity.
- Keep in mind that exponential smoothing provides a method of incorporating recent observations into the forecast, but it might not capture sudden changes or non-linear trends very effectively.
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