1-What does it mean that a process is under statistic control? Can a production be labeled as "out of control" because it is too good? Explain.
2-What are run charts used for in process control? Why is it desirable to use both median run test and up/down run test on the same data? If neither of these reveal non-randomness?
2 answers
I don't know the answers. Statistics is not my field. Your textbook undoubtedly explains these concepts. I recommend reading it.
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