10. After graduating from college, you and your friends start selling birdhouses made from recycled plastic.

The idea has caught on, as shown by the following sales figures:

a. (*) Prepare forecasts for June through September using a three-period moving average model.

b. (**) Prepare forecasts for June through September using an exponential smoothing model with 0.5.
Assume the forecast for May was 2000.

c. (**) Prepare forecasts for June through September using an adjusted exponential smoothing model with 0.5 and 0.3. Assume the unadjusted forecast (Ft) for May was 2000 and the trend factor (Tt) for May was 700.

Transcribed Image Text:

MONTH DEMAND March 220 April 2240 May 1790 June 4270 July 3530 August 4990