The following table shows the actual demand observed over the last 11 years:

Year	1	2	3	4	5	6	7	8	9	10	11
Demand	7	9	5	9	13	8	12	13	9	11	7

This exercise contains only parts b, c, and d.Part 2b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses to one decimal place).

Year	4	5	6	7	8	9	10	11	12
Forecast	77	7.677.67	99	1010	1111	1111	11.3311.33	1111	99

Part 3c) Using the 3-year weighted moving average with weights

0.10,

0.30,

and

0.60,

using

0.60

for the most recent period, provide the forecast from periods 4 through 12 (round your responses to one decimal place).

Year	4	5	6	7	8	9	10	11	12
Forecast	____	____	_______	_____	_____	_______	_______	______	_______