a manager in a call center needs to determine how many agents to schedule next week. based on the previous data, she expects to get 7,940 calls next week. the following conditions apply. on average call center agents can handle seven calls an hour. the call center is ooen for 10 hours, 5 days a week. full time agents works 40 hours per week, but are onle on calls for 35 hours a week. part time agents work 20 hours a week, but are only on calls 17 hours per week. which combination is the best to meet the scheduling needs?