Which of the following is a statistically based methodology for improving product quality and a direct descendant of the total quality management philosophy, and is the principal tool that most managers now use to increase the reliability of their product offering?

Question

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The principal tool that most managers now use to increase the reliability of their product offering is the Six Sigma quality improvement methodology. The Six Sigma methodology is a direct descendant of the total quality management (TQM) philosophy that was widely adopted, first by Japanese companies and then American companies during the 1980s and early 1990s.

Which of the Following Is a Statistically Based Methodology for Improving