Erlang Loss Table m r = p/a 2 3 5 6 8 9 10 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Enter a value for 'r' in the green cell above. Jiffy Service is a call center with several business units. One of its business units staffs four operators who provide support for an industrial plumbing supply company. Calls arrive during business hours every three minutes, with a standard deviation of interarrival times equal to three minutes as well. If all four operators are busy when a call arrives, it is rerouted to another business unit instead of being put on hold. The processing time for calls is five minutes on average. (Round your answer to 2 decimal places.) a. What is the offered load? (Round your answer to 2 decimal places.) b. What is the implied utilization? c. What is the capacity of this call center (calls per hour)? Round your answer to 4 decimal places. Do not round intermediate calculations.) d. Use the table above to determine the probability that all four operators are talking to customers? Round your answer to 1 decimal place. Do not round intermediate calculations.) e. How many customers are served every hour? Round your answer to 2 decimal places. Do not round intermediate calculations.) f. What is the utilization of the operators? Use the table above to determine how many operators should it have to ensure that it serves at least 97 percent of demand