A . 8 A manager wants to assign tasks to workstations to achieve an hourly output rate of 20 units. Assume that the shop works 60 minutes per hour (i.e., no breaks). Assign the tasks shown in the following precedence network to workstations using the following heuristic rules: "Assign the task with the most followers." What is the efficiency? (choose the closest answer) 2 min. 1 min. b d 3 min. 2 min. 2 min. Formulas: Cycle time = Operating time per day / Desired output per day Nmin= Sum of task times / cycle time Percentage idle time = [sum of idle times per unit/(N_actual X Cycle time)] Efficiency = 100 - percentage idle time