| One common challenge when applying Six Sigma to reliability improvement is a severe shortage of meaningful data. The mainstream Six Sigma training programs are better geared to manufacturing, operations, and run charts. The classic rules of capturing a change on a run chart include "seven points in a row above the mean" and so on. This approach can have reliability engineers scratching their heads when failure rates only provide a defect every 10 months. Fortunately, some analytical techniques can provide statistically significant evidence of improved performance over a much shorter time period. This presentation will walk you through some example calculations and show how it can be done to the satisfaction of your Master Black Belt. |
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