importance of sigma

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    HISTORY of TQM

    In 1947 W. Edwards Deming Ph.D., an American statistician was invited to help the Japanese work on their census tracts. Two years later, Dr. Deming, returned to Japan to teach a course on statistical control. His first formal course began in July 1950 with 220 engineers enrolled in the course...
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    Six Sigma

    By Ankur Agarwal
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