Student tuition at Boehring University is $ 100 per semester credit hours. The states supplement school revenue by matching student tuition, dollars per dollars. Average class size for typical three credit course is 50 students. Labor costs are $4000 per class, material costs are $20 per student, and overhead cost are $25,000 per class. Find: a) What is the multifactor productivity ratio? b) If instructors work an average, what is the labor productivity ratio? (Keep in mind that professor delivering the lecture work 14 hours per week the semester last for 16 weeks)