2.3.Workforce Scheduling: The Operations Manager at the Metropolis National Bank has a staffing problem. Demand for clerical staff varies throughout the day, but 24-hour coverage is necessary because the bank handles a number of international transactions. A recent study has shown how many clerical workers are needed each hour in the course of the day, as shown below. (Hour 1 is from midnight to 1 am.) Hour 1 Staff 4 2 4 6 10 12 6 6 10 10 10 Hour 13 14 15 16 17 18 19 20 21 23 24 Staff 12 12 4. 4. 4. Under current labor policies, clerical workers may be assigned to any one of six shifts, some of which overlap. The shifts and salary costs are as follows Shift 2 am- 10 am 6 am - 2 pm 10 am - 6 pm 2 pm - 10 pm 6 pm - 2 am 10 pm -6 am Daily Cost $160 $145 $148 $154 $156 $160 (a) Provide the operations manager with a schedule that will deploy enough staff to meet the hourly requirements at the minimum daily total cost (b) In the optimal schedule, how many hours are overstaffed