Consider the following tasks, times, and predecessors for an assembly of set-top cable converter boxes: TASK ELEMENT TIME (MINUTES) PRECEDING TASKS A 2 B 1 A 2:51 C 5 B D 4 B E 3 C, D F 3 A G LGHT 2 F 1 G I 4 E, H Given a cycle time of seven minutes, what is the efficiency of your layout? Use any rule that you wish to assign tasks to workstations, as the rule used should not affect the efficiency answer. (Round your answer to the nearest whole percent.) ] Efficiency nces %