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Old 13th March 2001, 03:08 PM
L.G.
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Question Poor MSA for DOE - explain effect
I find myself in the possition of having to explain how having a 67% of study error in a measurement system (AIAG MSA method - variable data) errodes the confidence in DOE results relying on this system. Can anyone suggest how to prove the negative effects of using this poor system for DOE analysis? Those I need to convince don't seen to think there is too much wrong with this! They feel that the DOE is used to show relative differences between parameter settings, thus the %error is not that important! I've told them that with this much error, you have little confidence about the relative differences you've calculated. Please help me prove it!
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Old 22nd March 2001, 11:08 AM
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Any DOE / MSA experts out there?
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Old 22nd March 2001, 12:12 PM
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Would your collegues drive a car with 67% error in the feul gauge?

If you can't trust your data because you can't trust the measurmant system, you can't make any reliable decisions.

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