Problem 2 - Forecasting [3 points]

Assume that your stock of sales merchandise is maintained based on the forecast demand. If the distributor's sales personnel call on the first day of each month, compute your forecast sales by each of the three methods requested here. Round your answers to the nearest whole number.

	ACTUAL
June	140
July	170
August	210

1. [1 point] Using a simple three-month moving average, what is the forecast for September?

Septembers forecast = _________

2. [1 point] Using a weighted moving average, what is the forecast for September with weights of 0.40, 0.50, and 0.10 for June, July, and August, respectively?

Septembers forecast = _________

3. [1 point] Using single exponential smoothing and assuming that the forecast for June is 130. What is the forecast for September with a smoothing constant of 0.20.

Septembers forecast = _________