Starbucks coffee is considering opening a drive-through window. Management estimates that customers will start of 10 per hour, the employee the window can serve customers at a rate of one every Five (5 minutes. Assume Poisson arrival and exponential service 1. What is the service rate? 2. How long would you expect it to take to wait in line and take your coffee 3. What percentage of time the employee is idle free? 4. What is the average number of cars waiting in the line 5. What is the probability than an incoming car will find at least Three (3) cars waiting in line? "T