Final answer:
The naïve method forecasts that the value for Week 7 will be 14, based on the most recent observed value from Week 6.
Step-by-step explanation:
The student asks about using the naïve method for forecasting in a time series analysis. The naïve method predicts the future point in a time series as being equal to the last observed point. In this case, with weekly values provided for six weeks,:
- Week 1: 18
- Week 2: 13
- Week 3: 16
- Week 4: 11
- Week 5: 17
- Week 6: 14
Using the naïve method, the forecast for Week 7 would be the most recent value observed, which is the value from Week 6: 14.