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Depo74
Good morning everyone
I dicovered this forum two weeks ago and it helped me a lot to understand this manual.
But, since I try to make my own worksheets based on the Average and Range Method, I need need some help. Indeed, I don't see clearly how the coverage coefficient k (5.15 or 6 for instance) affects the results of the %GRR.
According to the formulas p191, %GRR based on Process variation is given by (k * sigma_measure)/(6 * sigma_observed)*100%
So, i would like to know if the number 6 is always constant or if it depends on the value of this k
I assume the formulas given in %GRR report p.114 are already simplified with a k=6 and this is why %GRR is equal to sigma_meausre/sigma_observed but i would like someone to confirme that
And at last, are these observations true for the Anova Method ?
Thanks for your help ( and sorry for my English)
I dicovered this forum two weeks ago and it helped me a lot to understand this manual.
But, since I try to make my own worksheets based on the Average and Range Method, I need need some help. Indeed, I don't see clearly how the coverage coefficient k (5.15 or 6 for instance) affects the results of the %GRR.
According to the formulas p191, %GRR based on Process variation is given by (k * sigma_measure)/(6 * sigma_observed)*100%
So, i would like to know if the number 6 is always constant or if it depends on the value of this k
I assume the formulas given in %GRR report p.114 are already simplified with a k=6 and this is why %GRR is equal to sigma_meausre/sigma_observed but i would like someone to confirme that
And at last, are these observations true for the Anova Method ?
Thanks for your help ( and sorry for my English)
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