A manager wants to assign tasks to workstations in order to achieve an hourly output rate of four units. The department uses a working time of 56 minutes per hour. 3 2 4 @ @ G& O && a. Assign the tasks shown in the above precedence network (times are on the nodes and are in minutes) to workstations using the following heuristic rules: (i) \"Assign the task with the largest positional weight.\" (ii) Tiebreaker: \"Assign the task with the longest time.\" If a tie still exists, choose randomly. (Do not leave any empty spaces; input a O wherever it is required.) Workstations Task Idle Time 1 (Click to select) v 5 (Click to select) v g (Click to select) v UL b. What is the efficiency? (Do not round intermediate calculations. Round the final answer to 1 decimal place.) Efficiency [ 1%