Chapter 6: A company is setting up an assembly line to produce 90 units per hour. The table below identifies the work elements, times, and immediate predecessors. a) What cycle time is required to satisfy the required output? b) What is the theoretical minimum number of stations? c) Use one of the heuristic decision rules described in Table 6.3 on page 235 to balance the assembly line so that it will produce 90 units per hour. Clearly state the decision rule you use and complete the below table using the selected rule. Note: The actual number of stations to be used to balance the line depends on the heuristic decision rule used and may be higher than the theoretical minimuon calculated in part b. d) What is the efficiency of the line you found in part c