Khozas Manufacturing makes calculators for the local retail markets. They have received an order of 4500 calculators. The order is due for delivery on week 5. Each calculator consists of a cover, process chip and keypad. The cover is made up of a display unit and 2 battery housings. The cover is made by the firm and takes 2 weeks to produce. The process chip and keypads are ordered and the lead time is three weeks. Final assembly requires 1 weeks.

There are scheduled receipts as follows:

Process chips 450 (week 1) 900 (week 3) 450 (batch size)

Keypad 480 (week 1) 360 (week2). Batch size = 120

Draw an assembly Time Chart