Problem 9 Time Period Tellers Needed 9-10 10 10-11 12 11-12 14 Mexico City Bank of Commerce is open from 9 am to 5 pm and needs the number of tellers in the table to the right at various hours of the day: They would like to know the staffing schedule that minimizes costs. They can use a mix of full timers and part timers. Full timers work from 9 to 5. The full timers can take a lunch break either from 12-1 or from 1-2 and they can be split between the two in any way that the bank wants.. Part timers work 4 hour schedules (without break) and can start at any hour but must work 4 consecutive hours. Part timers cost $40 day per 4-hour day and full timers earn $70 per day. Formulate a linear program to produce the optimal schedule that minimizes cost. Solve the problem using Solver. 12-1 12 1-2 13 2-3 17 3-4 15 4-5 10