6. The letters in the table below represent work elements in an assembly precedence diagram. (a) Construct the precedence diagram and (b) determine the total work content time. (c) Use the largest candidate rule to assign work elements to stations using a service time (Ts) of 1.5 min, and (d) compute the balance delay for your solution. Work element or tasks A B D E F G H J Time (min) 0.5 0.3 0.8 1.1 0.6 0.2 0.7 1.0 0.9 0.4 Preceding A A A B,C D F F G, H, I 7. Solve the previous problem but use the Kilbridge and Wester method in part (c). 8. Solve the previous problem but use the ranked positional weights method in part (c)