A Three Step Manufacturing Operation Consider a three-step manufacturing process. Each step employs a single worker who

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A Three Step Manufacturing Operation
Consider a three-step manufacturing process. Each step employs a
single worker who is not cross-trained for any other step.
The setup represents the amount of time the worker spends setting
up the machine for each order. No units can be processed on a
machine while it is being set up. The run time represents the
amount of time it takes the worker to process a single unit. When a
worker completes an order, he or she hands it off to the next
stage.
For Q1, at what order size (batch size) will there be two steps
that are both bottlenecks