Hussein Plastics produces plastic containers for use in the food packaging industry. Last year its average monthly production included 20 000 containers produced using one shift five days a week with an eight -hour -a -day operation. Of the items produced 15% were deemed defective. Recently, Hussein plastics has implemented new production methods and a new quality improvement program. Its monthly production has increased to 25000 containers with 9 percent defective.

(a)Compute productivity for the old and new production system per month. (4 marks)

(b)Compare the changes in productivity between the two production systems. (2 marks)