Calculate Lead Time Williams Optical Inc. is considering a new lean product cell. The present manufacturing approach produces a product in four separate steps. The production batch sides are 6 units. The process time for each step is as follows: Process Step 1 8 minutes Process Step 2 5 minutes Process Step 3 6 minutes Process Step 4 4 minutes The time required to move each batch between steps 13 minutes. In addition, the time to move watens to Process Step 1 is also 13 minutes, and the time to move completed units from Process Step 4 to finished goods inventory is 13 minutes The new leon layout will allow the company to reduce the batch sizes from its to 4 units. The time required to move nach batch between steps and the entry locations will be reduced to 2 minutes. The processing time in each step will stay the same