in excel

5. (4 points) A computer processes jobs on a first-come, first served basis in a time-sharing environment. The jobs have Poisson arrival rates that average 0.6 jobs per minute. The objective in processing these jobs is that they spend no more than 5 minutes, on average, in the system. Assuming exponential service times, how fast does the computer have to process jobs (in minutes), on average, to meet this objective