Compute Lead Time Williams Optical Inc. is considering a new lean product cell. The present manufacturing approaches to the are 45 units. The process time for each step is as follows: Process Step 1 5 minutes Process Step 2 8 minutes Process Step 3 4 minutes Process Step 4 3 minutes The time required to move each batch between steps is 5 minutes. In addition, the time to move raw materials to Process Store completed units from Process Step 4 to finished goods inventory is 5 minutes The new lean layout will allow the company to reduce the batch sizes from 45 units to 3 units. The time required to move each batch between two and terry locations will be reduced to 2 minutes. The processing time in each step will stay the same Determine the value-added, non-value-added, and total lead timnes, and the value-added ratio under the present and propened druction woroaches 11 rouret round percentages to one decimal place. Present Approach Proposed Approach min min Value-added time min min Non-value-added time min min Total lead time % Value-added ratio (as a percent) Previous wa