We are forecasting quarterly beverage sales using Winter's method. We have the following information Seasonal factors fall=0.8, spring=1.2, winter=0.7; Summer 1.3 Current base estimate = 800 containers per quarter Current trend estimate = 30 packs per quarter The sale of 500 packages is now observed during the summer quarter a=0.2 (alpha) = 0.2 (beta) = 0.5 (Gamma) Use this information to update base, trend, and seasonal estimates (two decimal places)

Base estimate Response

Estimate Trend Response

Estimate Seasonality Response

After observing the summer demand, forecast the demand for the fall quarter, and the winter quarter.

Demand Fall Response Demand Winter Response