A) Develop forecasts for periods 7 through 10 for the demand data in the table using a three- period moving average, a weighted moving average using 0.6, 0.3, and 0.1, and exponential smoothing with alpha = 0.7. Use a 6thperiod forecast of 135 as the starting point for the exponential smoothing technique.

Period	Actual	MA n = 3	WMA	Exp. Smoothing
1	64
2	84
3	91
4	97
5	115
6	135
7	137
8	144
9	153
10	171

B) A forecasting method has produced the following over the past five months. What is the mean absolute deviation?

Actual	Forecast	Error
10	11	-1
8	10	-2
10	6	4
6	6	0
9	4	5