Q. Customers arrive at the theatre line at the rate of 100 per hour. The ticket seller averages 30 seconds per customer, which comprises placing validation stamps on customers’ parking lot receipts and punching their frequent watcher cards as well as selling tickets. Because of these added services, many customers don’t get in until after the feature has started. Assume that the arrivals follow a Poisson arrival distribution and the service times are exponentially distributed. There is an infinite population and an infinite queue.