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I D J The assembly of a product includes the following 11 tasks: Task Processing time Immediate predecessors Task Processing time Immediate predecessors A 5 G 2 B, D, F B 5 A, C H 4 B 2 5 H, G 4 A 10 E, G E 3 D K 2 I, J F 3 A, C Production manager wants to establish an assembly line to produce 80 units of the product each day, and the assembly line is operating in two 8-hour shifts per day. (1) Construct the network diagram, and compute the cycle time. (2) Use the shortest processing time (SPT) rule to assign tasks to workstations; break ties arbitrarily if necessary. (3) Compute the line efficiency. (4) Assume production manager wants to produce 50% more units. Compute the cycle time and repeat the above (2)-(3) to show the resulting task assignments and the line efficiency