Consider station 2 of Littlefield Technologies factory. Station 2 consists of a buffer and one machine. Let’s treat station 2 as an M/M/1 waiting line model—the buffer is the waiting line, the machine is the service facility (server) and orders are your customers. On average, every day a total of 16 orders arrive at station 2 for processing. Each machine can finish up to 20 orders per day
What is the average time an order waits in the buffer before being processed?