Consider the following batch-flow process consisting of three process steps performed by three machines:

Work is processed in batches at each step. Before a batch is processed at a step, the machine at that step must be set up. (During a setup, the machine is unable to process any product.) Assume that there is a dedicated setup operator for each machine (i.e., there is always someone available to perform a setup at each machine.)
a. What is the capacity of step 1 if the batch size is 35 parts?
b. For what batch sizes is step 1 (2, 3) the bottleneck?

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-A- - Step 1 Step 2 Step 3 Processing Time: 0.25 Minute/Part Processing Time 0.20 Minute/Part Processing Time: 0.15 Minute Part Setup Time 30 Minutes Setup Time 20 Minutes Setup Time: 45 Minutes