1. Using the demand given, compute a 4-period weighted moving average forecast for period 6 using a weight of 0.4 for the most recent period, 0.3 for the next, and 0.2 for the next.

Period	Demand
1	10
2	16
3	18
4	19
5	22

a. 19.7

b. 20

c. 20.8

d. 23

2. Using the demand given, compute a 3-period weighted moving average forecast for period 6 using a weight of 0.7 for the most recent period. Also, the weight of period 4 is twice as big as the weight of period 3.

Period	Demand
1	10
2	16
3	18
4	19
5	22

a. 21

b. 20

c. 22

d. 21.7