Question: A worker operates machines that are power fed and require 4 minutes per machine to run. It takes the operator 20 seconds to load and

  1. A worker operates machines that are power fed and require 4 minutes per machine to run. It takes the operator 20 seconds to load and unload each machine, and 15 seconds to inspect each part after it is removed from the machine between machines. Operators are paid $18 per hour, and the machine costs $7 per hour to operate.
    1. How many machines should an operator be assigned to minimize the total expected cost per piece produced?
    2. Given your recommendation in part a,
      1. What is the cycle time of this process?
      2. Will the operator or the machine be idle during a cycle?
      3. What is the production rate?

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