6) Consider a production line consisting of N machines in series. The bottleneck machine (the slowest machine) has a rate of b and a utilization of 75%. Jobs arrive to the production line at a rate of . Inter-arrival times between jobs are random and have a coefficient of variationof CA. What happens to throughput, TH, expected time in system, E[W], and expected WIP, E[N], when we make the following changes (one at a time while keeping everything else the same) (8points) (d) the variability in job processing times at the last machine is increased by 10% THE[W]E[N]goesupgoesupgoesupstaysthesamestaysthesamestaysthesamegoesdowngoesdowngoesdown