(Chapter 4 Process Improvement) Consider a process with three process steps, each of which is staffed with one or more workers. The sequence of the three steps does not matter for the completion of the product. Currently, the three steps are operated in the following sequence: Do step 1 then step 2 then step 3. Assume there is a buffer storage in front of every step. Also assume there is sufficient input raw material at Step 1. Assume demand is 15 units per hour. Your manager tells you to add another worker to the process. Find the stage to assign the worker such that the process flow rate is maximized? What is the approximate flow rate after adding the new worker to the process? Add the worker to Step 1; The flow rate after adding the new worker is 10 units /hr. Add the worker to Step 3; The flow rate after adding the new worker is 11.3 units /hr. Add the worker to Step 2; The flow rate after adding the new worker is 10 units /hr. Add the worker to Step 1: The flow rate after adding the new worker is 11.3 units/hr