1. Over the past three months, the demand for a product has been 165, 139, and 137. Calculate the three-month moving average forecast for month 4. If the actual demand in month 4 is 158, calculate the forecast for month 5.

2. ABC Baking Company is planning to purchase ingredients for bread production. The bread demand forecast for last week was 22,000 loaves, but only 21,000 loaves were actually demanded. What would ABC's forecast be for this week using exponential smoothing with a = 0.10?

3. firm uses exponential smoothing to forecast its demand. For May, the deseasonalized forecast was 1100 units, and the actual seasonal demand was 1300 units. The seasonal index for May is 1.3 and for June is 0.8. If a is 0.2, calculate the seasonal forecast for June