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Tzippy Shochat

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Why You Cannot Depend Totally on Statistical Software

The proliferation of do-it-yourself statistical software is giving some Six Sigma practitioners and other quality professionals, who are not strong in statistics, a false sense of confidence in their ability to collect and analyze data, and then reach sensible conclusions. What some may not realize is that much of the critical work is done long…

Tips for Getting the Most from Six Sigma Surveys

Surveys surround us. The questions come via the mail, face to face in shopping malls, on the telephone, and increasingly over the Internet – a multitude of surveys, but many of them fail to achieve their goals. The fault often lies with those who design and administer the surveys with good intentions, but without the…