11.3 Still concerned about the risk in Problem S11.2, sup-pose that Phillip is willing to use one local supplier and up to two more located in other territories within the country. This would reduce the probability of a "super-event" to 0.5%, but due to in-creased distance the annual costs for managing each of the distant suppliers would be $25,000 (still $15,000 for the local supplier). Assuming that the local supplier would be the first one chosen, how many suppliers should Witt Input Devices use now?