Week
		1	2	3	4	5
Forecast Requirements		40	40	40	40	40
In Transit		80
Projected Available Balance	10	50	10	50	10	50
Planned Shipments			80		80

Q = 80, LT = 1, ss = 10

1. Develop the DRP records above for periods two through four given demands of 39, 41, and 38 in periods one, two, and three.
2. Complete the same records using the error addback method. What differences occur?