Tzippy Shochat

The proliferation of do-it-yourself statistical software can give some Six Sigma practitioners, who may not be strong in statistics, a false sense of confidence. For the most accurate results, follow these eight tips before you begin collecting and analyzing data.

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 […]