Our orders are delivered strictly on time without delay 
1) Define the different between linear and nonlinear optimization with example each? (6 marks)
Answer:
2)
A- How to calculate forecast error? (1 mark)
Answer:
B- Calculate forecast error for December? (1 mark)
Month
Sales
Forecast
Error
September
5500
3000
———
October
7200
4150
———
November
8600
9100
———
December
9300
7900
Answer:
3)
A- How to calculate forecast weighted moving average? (1 mark)
Answer:
B- Apply forecast weighted moving average formula for week 2. (1 mark)
(n = 2, W1 = 0.5, W2 = 0.8)
Week
Demand
1
7000
2
4000
3
3000
4
5000
