Problem:
Howard Plastics produces plastic containers. Last year 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, Howard Plastics has implemented a new production method and a new quality improvement program. Its monthly production has increased to 25,000 containers with 9% defective.
Compute the productivity ratios for the old and new production systems.