A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly output of 6 units. The department uses a working time of 56 minutes per hour. A) Assign the tasks shown in the following precedence network (The number are the task times in minutes) to workstations using the rules: in order of the tasks with most followers. Tiebreaker: The task with longest time. Specify which station (single digit station ID e.g. 1, 2, etc) in the Table below. A(3) B(3) C(2) D(4) E(2) H(3) (6) F(5) G(3) Task (Time) Station ID (e.g. 1, 2, etc) A (3 min) B (3 min) C (2 min) D (4 min) E (2 min) F (5 min) G (3 min) H (3 min) (6 min) B) What is the efficiency? Efficiency = % (provide your answer in digits. Do not provide % sign. Approximate to two decimal digits.)