A printed circuit board (PCB) machine installs integrated circuits onto a board. Before starting to produce a board, the PCB machine requires a 20-minutes setup. Once in production, the PCB machine requires only 0.15 minutes per board.

Currently, the PCB machine produces 500 boards between setups. Given this operating process, what is the capacity of the PCB machine (in boards per minutes)? (Round your answer to 2 decimal places.)

Currently, the PCB machine produces 500 boards between setups. Given this operating process, what is the utilization of the PCB machine? (Round your answer to 2 decimal places.)

Say the PCB machine produces 200 boards between setups and demand is 2 boards per minute. Given this operating process, what is the average inventory of boards at the PCB machine? (Enter your answer as a whole number.)

Demand for boards occurs at the rate of 2 boards per minute. What is the smallest batch size such that the PCB machine does not constrain the flow rate through the process? (Round your answer to 2 decimal places.)

Note: This question doesn't ask you to show explanation. Show the final answer in each question.