6. (10) A machine operates with 75% average uptime. When a failure occurs, it lasts 15 minutes at minimum. The average downtime is 90 minutes. a. (5) Assume blocking/idling are not significant. What is the mean uptime and the percentage breakdown of uptime, downtime and blocked/starved time from the Time Frame Report? What are the distributions for uptime and downtime? (Hint: generating the Simio representation and copying/pasting it is recommended.) b. (5) Assume blocking and idling are significant, and that the mean number of parts produced during uptime is 50 with each one taking 6 minutes on average. What is the mean uptime and the percentage breakdown of uptime, downtime and blocked/starved time from the Time Frame Report? What are the distributions for uptime and downtime? (Hint: generating the Simio representation and copying/pasting it is recommended.)