3. Now assume that customers arrive such that the interarrival times alternate between 4 minutes and 8 minutes. In other words, the first car arrives at 8:00am, the next at 8:04am, the next at 8:12am, the next at 8:16am, etc. What is the average flow time? What is the average inventory? What is the average utilization? 4. Now assume that customers arrive such that the interarrival times alternate between 3 minutes and 9 minutes. What is the average flow time? What is the average inventory? What is the average utilization?