6.15) A machine produces three products per 40-hour period. Setup times, processing times, and demands are shywn below. If setup cost consists only of labor, and total labor cost is fixed, find the appropriate batch sizes to minimize inventory cost. All times are in hours. 6.15) A machine produces three products per 40-hour period. Setup times, processing times, and demands are shywn below. If setup cost consists only of labor, and total labor cost is fixed, find the appropriate batch sizes to minimize inventory cost. All times are in hours