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3.8 Time Series HOME  Achievement Objectives  Overview  The Statistics Cycle 
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Make Future Estimates (Predictions)
Seasonal Decomposition and Forecasting, Part II (Auckland Uni)  Tourist visitors to NZ from different countries notes, (Achieve) (Merit) (Excellence) HoltWinter method uses exponential smoothing  where recent data has greater weight, and old data has low weight. The weighting changes by a constant ratio (exponential decay) Investigate & compare the additive and multiplicative model forecasts

Exemplar: Predictions EXEMPLARS:  Alcohol Consumptn: Data csv, Word Worksheet  Google Doc class write up  Travel Destination Data csv  Word Write up  Google Doc class work  Travel Purposes: Data csv  Electricity Production: Data csv  (Website) Videos  Predictions  Confidence 