4. (20' points) In a machine station, jobs arrive according to a Poisson process with a rate of 8 per hour. There are on
Posted: Wed May 11, 2022 7:08 am
4. (20' points) In a machine station, jobs arrive according to a Poisson process with a rate of 8 per hour. There are only two types of jobs processed in this station, Job A and Job B. The probability that a job is Job A is 2/5. If it is Job A, it takes exactly 15 minutes to process it. If it is Job B, it takes exactly 5 minutes to process it. On average, how long each job stays in the station? (Hint: M/G/1 queueing system)