Uning Time: 1 hour, 35 minutes, 52 seconds Question Completion Status: Moving to the next question prevents changes to this answer. Question 21 5 points Starbucks coffee is considering opening a drive-through window. Management estimates that customers will arrive at a rate of 10 per hour, the employee staffing 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. what is the average time between arrivals (time between 2 arrivals)? 3. What percentage of time the employee is idle (free)? Paragraph Arial JE - T 3 (12pt) T' T. 14 Mashups HTML.ES :p 1