Most organizations operate at the Three Sigma level, or about 66,800 defects per million opportunities (DPMO) for most of their processes and at a Four or Five Sigma level in some of the mission-critical processes. Most organizations operate at the Three Sigma level, or about 66,800 defects per million opportunities (DPMO) for most of their processes and at a Four or Five Sigma level in some of the mission-critical processes. True False