An industrial plant needs to make 100,000 parts per month to meet demand. Each month contains 20 working days, each of which allows for 3 separate 8 hour shifts. a. If a worker can produce 10 parts/hour, how riaty workers are needed on each shift? b. If each shift has 100 workers, what is the productivity of an individual worker? c. If material costs are $10/ part, capital costs are $100,000 and labour costs are $10/ hour, what is the multifactor productivity of the plant from part A