Problem
A local hospital tracks the time it takes to admit patients after they arrive at the emergency room. The upper specification limit is 12 hours (720 minutes), and hospital administrators want to analyze the capability of their admission process to meet this specification. They will increase staffing levels if the capability is worse than 0.01% of the patients waiting longer than 720 minutes.
Data collection
The hospital records the waiting time of every patient. For the purposes of this study, the hospital administrators consider data from the most recent 1000 administrators