Francis Johnison's plant needs to design an efficlent assembly line to make a new product. The assembly line needs to produce 15 units per hour, and there is room for only four workstations. The tasks and the order in which they must be performed are shown in the following table. Tasks cannot be spilt, and it would be too expensive to duplicate any task. b. What is the workstation cycle time required to produce 15 units per hour? Note: Round your onswer to 1 decimal ploce. d. Balance the line to use the fewest possible workstations to meet the cycle time found in part (b). Use whatever method you feet is appropriate What is the efficiency of your line balance, assuming the line operates at the cycle time from part (b)? Note: Round your answer to 1 decimal place