**Currently people arrive (and exit) through two different doors to
wait in one line to use a single copier. They arrive through each door
at a rate of 1 person every two minutes, i.e an overall arrival rate
of one person each minute. The mean self service time on the machine is
1 minute with a standard deviation of .25 minute.**

**Using the tool you are assigned, create a mathematical and visual
simulation of this environment.**

**Using the simulator, determine the service time necessary to move
the line into a steady state.**

__Demo Tools to be utilized__

** ithink** from HPS, Inc http://www.hps-inc.com