in Table A call centre has the following minimal daily requirements for personnel as shown Table Minimum Requirements for Personnel Time of the day (24-hour clock) Period Minimum number of people required 1 20 2 15 3 2-6 6-10 10-14 14-18 18-22 22-24 4 5 6 8 6 12 30 Formulate a linear programming model to find an optimal schedule. Note: Consider Period 1 as following immediately after Period 6. Each person works eight consecutive hours.