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Unformatted text preview: 6. When should you use an XmR chart instead of a C chart? 7. a. How should you compute capability indices for an unstable process? b. How can they be useful? 8. How can you reduce common cause variation in a process which is under control? 9. For p charts, why should you avoid combining different types of defects in the same chart? 10. What is the advantage in using a u chart instead of using a c chart?...
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- Spring '11
- Systems Engineering, Interior, The Advantage, common cause variation