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