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投影片27

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Unformatted text preview: Six-Sigma Quality o “Six-sigma”referstothe philosophy and methods companies use to eliminate defects mm maiden-limits in their productand processes. 1 :- Seeks to reduce variation in the A ______:;a___________:_sa_ _________ processesthat lead to product . . . Rpm imms mo ppm outside defects mlimils - Statistically speaking, a process B "‘“"Z&;"“'“"":; ““““““ in "six-sigma" control limits will 7 . . onlyr produce less than 2 defects $353333?“ 2 pp]: outside spec limits per billion units. 0 With 1.55 shift in either direction from center (process will move), implies over 3.4 ppm is “bad”. ...
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