Laney P and U charts in JMP
How can I build Laney P and U charts in JMP?A very common problem when using traditional P and U control charts is false alarms due to overdispersion. David Laney devised P' and U' charts to overcome this problem.False alarms can be caused by too much variation in process data, or “overdispersion,” especially if you collected your data using large subgroups. The larger your subgroups, the narrower...