A machine is scheduled to run continuously over a month $(30$ days $x24h\frac{r}{?}$ day $=720$ hours$).$ Each day $($including weekdays and weekends$),$ there are $3$ shifts. When the shifts change, it takes approximately $20$ minutes of time when the machine is not being operated. Additionally, over the last month, the machine broke down and it took $5$ hours to repair. What is the overall equipment effectiveness of the machine? Round the percentage to the nearest one decimal point.

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Assume the role of a consultant to advise a company that makes touch screens on conversion to a lean system. Operations manager Billy Banks would like to know the benefits and risks of a lean system before proceeding. Compose an email to him that addresses those issues. Answer: