Computing Seasonal Indices, Deseasonalising and Forecasting

What this note covers

1. What Is Seasonal Variation and Why Does It Matter?
2. Step 1 — Calculating the Moving Average
3. Step 2 — Computing the Seasonal Ratio and Averaging to Obtain Final Indices
4. Interpreting Seasonal Indices
5. Step 3 — Deseasonalising the Data
6. Step 4 — Producing a Seasonal Forecast
7. Bringing It All Together — A Queensland Tourism Case Study

7 sections · 12 key terms & formulas · 6 common mistakes