20) In a system consisting of interdependent operations and some variation, all are true except a) The overall global output is slightly greater than the individual outputs. b) The higher the utilization of a given resource, the longer the cycle time. c) The higher the variation, the longer the cycle time d) The smaller the batch size, the faster the cycle time 21) All the following about operations is true except: a) To reduce batch sizing requires increases in change over time. b) Push systems create more WIP and longer cycle times. c) d) Littles Law is the key rule of operations flow. Large batch sizes slow the overall cycle time. All are true. e) 22) All the following statements regarding capacity are true except: a) Is the amount of output than be produced in a given time period. b) It can be measured using historical means. c) Capacity should not be used to buffer variation. d) Utilization is the amount of time a resource is used divided by its available time. Next 2 questions concern the data set on the right. This is population data, not a sample. 23) What is the median? a) 42.5 b) 35.5 c) 36.0 d) 35.0 24) What is the standard deviation? a) 8.192 b) 6.498 c) 7.267 d) 6.391 Item 1 2 3 4 5 6 7 8 9 11 13 14 15 16 17 18 19 20 B Weight 28 33 29 40 34 37 30 28 41 36 28 43 35 36 25 37 48 41 48 30