Out of Control - what do I do?

Derek BDerek B PQ Systems Employee
Happy Halloween to everyone visiting the community!

We recently had a customer send us the screenshot below of their Six-Way Analysis in SQCpack. 



Their inspection plan involves sampling 5 parts every hour and after reviewing the results, two questions arose:

1) Why are my limits so tight on the X-bar chart?  This is causing all of my data points to be Out-Of-Control.
2) What recommendations do you have for us (changing the inspection plan/frequency/etc)?

Can you help?  What would you do?

Comments

  • No knowing fully what the inputs are, quite honestly the process looks to be stable, the jumps could be attributed to change-over/setup, shift or operator changes, etc?
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