Consider a production system in which two different models of product are assembled. Task 1 2 3 4 5 6 7 8 9 10 Model Immediate Successor(s) 2,4 3 6 5 6 7,9,10 8 12 12 11 1 Duration (minute) 5 4 3 6 5 2 6 1 4 Task 1 2 3 4 5 6 7 8 9 10 Model 4 4 5,6 8 7 9 9 10 2 Immediate Successor(s) 2 Duration (minute) 5 10 5 2 7 5 10 2 5 7 Answer the following independent questions. (a) Draw the precedence diagrams for each model. (b) Answer the following independent questions. i. Suppose that both models are assembled in a mixed-model straight (serial) assembly line. Assume that there are 7 workstations, and determine the minimum cycle time by solving the problem by the ranked positional-weight technique. Illustrate the assignments of the tasks to the workstations. Compute the line efficiency of the straight assembly line. 3 11 124 12 12 7 Consider a production system in which two different models of product are assembled. Task 1 2 3 4 5 6 7 8 9 10 Model Immediate Successor(s) 2,4 3 6 5 6 7,9,10 8 12 12 11 1 Duration (minute) 5 4 3 6 5 2 6 1 4 Task 1 2 3 4 5 6 7 8 9 10 Model 4 4 5,6 8 7 9 9 10 2 Immediate Successor(s) 2 Duration (minute) 5 10 5 2 7 5 10 2 5 7 Answer the following independent questions. (a) Draw the precedence diagrams for each model. (b) Answer the following independent questions. i. Suppose that both models are assembled in a mixed-model straight (serial) assembly line. Assume that there are 7 workstations, and determine the minimum cycle time by solving the problem by the ranked positional-weight technique. Illustrate the assignments of the tasks to the workstations. Compute the line efficiency of the straight assembly line. 3 11 124 12 12 7