Using an Excel Spreadsheet

Jobs arrive at a CNC Machining station where they are manually set up in a fixture, checked, and then machined automatically to specifications The arrival rate of jobs follow a Poisson distribution with a mean of 6 jobs per hout. The CNC machining center processes these jobs on a first-come-first-serve (FCFS) basis at a rate of 10 jobs per hour. The processing time is also Poisson distributed include tables with calculations and graphs where appropriate (classroom discussion) Find: (c) The probability that the system is idle (d) The probability of 0,1,2,3,4 and 5 jobs in the queue (e) The waiting time of a job in the queue (t) The waiting time of a job in the system