Continuing Problem 2, now assume that Carlton is permitted to employ some uncertified, part-time instructors, provided they represent no more than 15 percent of the total workforce hours in any quarter. Each part-time instructor can work up to 240 hours per quarter, with no overtime or under time cost. Labor costs for pan-time instructors are $12 per hour. Hiring and training costs are $2000 per uncertified instructor, and there are no layoff costs.
a. Propose a low-cast, mixed-strategy plan and calculate its total cost