I would have to see the structure of your experiment, but correctly done, you can use GLM to analyze the results. You will need to properly identify the parts and operators as random factors.
No. S is not the sigma for your gage. You will need to have Minitab report the Variance Components.
See my file attached to my blog for Wheeler's Honest Gage Study. The GRR Report worksheet has a Variance Components table that pulls data from the hidden worksheet ANOVA. These variance components are the variances for the gage. Note that Repeatability is the error term.
Regarding the ISO-plot, it depends on what you are using it for. Youden's original intent was to compare different laboratories, which have different operators and test equipment. The ISO-plot can be used in a similar fashion to compare two different gages used to measure the same parts. You may use the same or different operators depending on the purpose of your study.
Shainin's use of the ISO-plot was a single operator and gage with repeated measurements. This was to validate the gage for a study. Normally a single operator can use the gage during the course of a study.
No. S is not the sigma for your gage. You will need to have Minitab report the Variance Components.
See my file attached to my blog for Wheeler's Honest Gage Study. The GRR Report worksheet has a Variance Components table that pulls data from the hidden worksheet ANOVA. These variance components are the variances for the gage. Note that Repeatability is the error term.
Regarding the ISO-plot, it depends on what you are using it for. Youden's original intent was to compare different laboratories, which have different operators and test equipment. The ISO-plot can be used in a similar fashion to compare two different gages used to measure the same parts. You may use the same or different operators depending on the purpose of your study.
Shainin's use of the ISO-plot was a single operator and gage with repeated measurements. This was to validate the gage for a study. Normally a single operator can use the gage during the course of a study.
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