Assignment:
Given the figure below, operation 1,2, and 3 run for 16 hours per day, five days per week. Operations 4 and 5 represent rework operations on parts that fail inspection upon completion of operations 2 and 3, respectively. Such rework operations only run 8 hours per day and five days a week. The defective rate for each process is shown in the figure. How many units must the process start with in order to meet the required output of 3000 units? If the operation 2 shows standard time of 3 min, Efficiency of 98%, and reliability of 95%, how many machines for operation 2 are needed?
