A computer virus has destroyed some of the numbers in a Wagner-Whitin computatio
ID: 443130 • Letter: A
Question
A computer virus has destroyed some of the numbers in a Wagner-Whitin computation table that you were working on. The only information that remains is shown in the table below. i. (*16 points) Complete the following Wagner-Whitin solution table by filling all cells that are required to determine the optimal production plan over the five-month planning horizon. Note that per unit variable production or purchase cost are constant over time and may be ignored. The fixed order (setup) cost, A, and the monthly inventory holding cost rate, h, data are the same in each month. All missing information (e.g., cost & demand data) may be inferred from the visible entries in the table. [Write table cost entries in terms of A and h.]
Planning Period, t (months)
1
2
3
4
5
Demand à
50
D2 =________
75
50
D5 =________
jt = 1
A = _______
ß A + h ´ D2 = 320
770
2
400
3
910
4
5
Zt*
A
320
770
jt*
1
1
1
1
1
Q*t = Optimal Quantity
Planning Period, t (months)
1
2
3
4
5
Demand à
50
D2 =________
75
50
D5 =________
jt = 1
A = _______
ß A + h ´ D2 = 320
770
2
400
3
910
4
5
Zt*
A
320
770
jt*
1
1
1
1
1
Q*t = Optimal Quantity
Explanation / Answer
_______________________________________________________________________
0 80 0 0 590
770 - 770 =0
400 - 320 = 80
910 - 320 = 590
Demand = 2 *Demand
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