AP4: Queuing OPS 3880 You need coffee and FAST! You happen to be at the coffee shop in Target at the Sawgrass mall. You are buying your groceries, but can see the smiling people with their coffee and know this coffee shop has a history of a line. Usually you can expect there to be 7 people in line any time you come here (there is only one order taker). Service time averages 60 seconds. SHOW ALL WORK! Remembering p= u L = aw, W= La = pl=L-P, W, = pW = W Pn= (1 p)p" u-R a. What is the utilization of the server? % b. What is the expected time between people arriving to this system? seconds c. What is the expected wait until service starts? seconds d. What is the probability of 3 or fewer people in line upon your arrival?__%