A process has a bottleneck resource that consists of specialized equipment. Jobs arrive to this machine at a rate of 24 per hour (according to a Poisson arrival process). The processing times average 90 seconds and are exponentially distributed. Determine the total average time per unit for the bottleneck resource (wait time + processing time) for the following three settings. 1. Consider the system as it is currently constructed. 2. Add a second identical machine at the bottleneck 3. Replace the current machine with one that is twice as fast.