Problem (2): Given the information in problem (1) and the information in the table below Standard time Efficiency 5 97% 95% 12 Operation MI R1 M2 M3 R2 M4 105% 2 4 10 3 Reliability 95% 90% 95% 90% 85% 95% 100% 95% 95% Assume operations M1, M2, M3, and M4 run for 16 hours per day, five days per week. R1, and R2 are available for 8 hours per day, five days per week. a. How many machines are needed to perform each operation? b. Considering the modifications provided in the table below, calculate the optimum number of identical machines for each operation to assign an operator. Time is given in minutes Operation Concurrent activity time Machining Time Operator activity time MI 1.5 5 4 R1 2 10 4 M2 3 6 6 M3 2 4.5 3 R2 4 11 5 M4 2.5 4 2.5 c. Suppose the cost per operator-hour is $12 and the cost per machine-hour is $25. Determine the cost per unit produced by the number of machine assignment for each operation, and then select the best choice of the number of machines assigned to an operator d. Using part (c) and the information given in the table below. Calculate the minimum space in sqft required for a department containing all the above machines Assume an aisle allowance of 20% of the total area of the department. Personal Space (L X Operation W) Material Space 20 sqft Max. Travel (L) 4 6 3 Max. Travel (W) 0 2 Font Prints (L x w) 6 x 12 sqft 8 x 10 sqft 6 x 12 sqft 6 x 12 sqft 8 x 10 sqft 6 x 12 sqft 25 sqft 15 sqft M1 R1 M2 M3 R2 M4 1 5 x 4 sqft 6 x 4 sqft 5 x 4 sqft 5 x 4 sqft 6 x 4 sqft 5 x 4 sqft 4 30 sqft 20 sqft 25 sqft 0 6 3 2 4