The principal tool that most managers now use to increase the reliability of their product offering is _____, a statistically based methodology for improving product quality. it is a direct descendant of the total quality management philosophy.
answer: six sigma. six sigma is a process or tool or method for the process improvement. it improves the quality of the output by identifying the root causes for the defect and eliminating it. six sigma determines the maturity of a manufacturing process. in this method the defect will be 1 per million of produce.
