Calculate Lead Time williams Optical Inc. ls considering a new lean product cell. The present manufacturing approach produces a product in four separate steps. The production batch sizes are 69 units. The process me for each step ls as follows: Process Step 1 Process Step 2 Process Step 3 Process Step 4 The time required to move each batch between steps is 13 minutes. In addition, the time to move raw materials 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 lean layout will allow the company to reduce the batch sizes from 69 units to 4 units. The time required to move each batch between steps and the inventory locations will be reduced to 2 minutes. The processing time in each step will stay the 7 minutes 5 minutes 4 minutes 9 minutes Determine the value-added, non-valur-added, and total lead times, and the value-added ratio under the present and proposed production approaches. If required, raund percentages to one decimal place Present Approach Proposed Approach Value-added time Non-value-added time Total lead time value-added ratio (as a percent) 25 25 min min % min - - % Chack My Wark In this exercise for Present value-added processing time Add together Process steps 1-4 Non-value-added time Total within-batch wait time + love time, where Total Within-Batch Wait Time (Total Time to Perform Operations) x (Batch Size 1) Add value-added processing time non-value-added processing time to obtain total processing time. Calculate Value-Added Ratio Value-Added Process Time Total Process Time In this exercise for Proposed: Value added pracessing time-Add together Process steps 1-4 Non-value-added time Total within-batch walt time+ Move time, where Total Within-Batch Wait Time is obtained by multiplying the process time by the remaining units in the batch (waiting their turn) Add value-added processing time non-value-added processing time to obtain total processing time. Calculate Value Added Ratio Value Added Process Time Total Process Time Learning Objective 1. Check My Work Previcus Next