3. The Chronometer Stop is a small clock and watch repair shop in Dallas with only one repair person. Repair jobs arrive according to a Poisson process at the average rate of 1 job per hour. Repair times are approximately normally distributed with a mean repair time of 45 minutes and a standard deviation of 5 minutes. The repair person randomly chooses jobs to repair from the jobs left by customers. (a) What is the applicable queueing model in the format (a/b/c) :(d/e/f)? No credit will be given for question 3 unless part (a) is answered correctly. (b) Find the average rate for the arrival process in \# per hour and the average rate for the repair person in \# per hour. (c) Does a steady state exist? Explain your answer in one short sentence. (d) If the answer to (c) is yes, find the expected waiting time a customer spends in the system in steady state in hours. Write NA otherwise. ANSWER (a) The applicable queueing model in the notation (a/b/c):(d/e/f) is (b) = = (c) Does a steady state exist? Circle exactly one. YES NO Explain your answer in fewer than 12 words. (d) Expected waiting time in system in hours =