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Hello,
I have always selected parts from the production when i have made my MSA but i understand from this forum and also from AIAG it recomends to use historical standard deviation instead. But i have to be clear how to approach this alternative. Should the standard deviation be calculated from a different measurementsystem (gauge)? Or same gauge that is in focus in my MSA?
I have always selected parts from the production when i have made my MSA but i understand from this forum and also from AIAG it recomends to use historical standard deviation instead. But i have to be clear how to approach this alternative. Should the standard deviation be calculated from a different measurementsystem (gauge)? Or same gauge that is in focus in my MSA?