An engineering firm retains a technical specialist to assist 4 design engineersworking on a project. On average, each help request for assistance takes thespecialist 1 hour. The engineers require help from the specialist on the average ofonce each day. Because each assistance takes about an hour, each engineer can workfor 7 hours, on average, without assistance.(a) How many engineers, on average, are waiting for the technical specialist for help?(b) What is the average time an engineer has to wait for the specialist?(c) What is the probability an engineer will have to wait in line for the specialist?
