From the course: Six Sigma: Black Belt
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Measurement system analysis (MSA) for attributes - Minitab Tutorial
From the course: Six Sigma: Black Belt
Measurement system analysis (MSA) for attributes
- Sometimes, your projects may have to deal with discrete or categorical data. For instance, say a defect rate is 75%, or what if Reason Code B accounts for 80% of all calls to customer service. Before using this data, a Measurement System Analysis, or MSA, for attributes must be done to ensure the data from the evaluation of attributes is valid. The assessment of attributes may result in a pass/fail on an inspection, or it could be the classification of incoming calls by customer service reps, as to whether it's Reason Code A, B, C, or D. This type of MSA is called Attribute Agreement Analysis. In Attribute Agreement Analysis, you want to evaluate three calculations. First, the percent agreement between appraisers, which measures reproducibility. Next, the percent agreement within appraisers, which measures repeatability. And the percent agreement with the expert, or standard. To conduct an Attribute Agreement Analysis, there must be multiple items to be evaluated. There also needs…
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