a A 5. A firm wants to produce 160 units in 8 hours (28800 seconds). The task times and sequencing requirement are as follows: Task Predecessor(s) Time (seconds) None 60 _(a) Construct the precedence diagram (2 points). b. 80 (b) Determine the cycle time in seconds. 30 (e) Find minimum number of stations. (d) Assign tasks by the longest task time (4 points). BD (e) Calculate the efficiency (2 points). f. None 50 C. None d C 40 e 40 F 100 H D G 70 1 E, H 30