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Wykres X-bar z n = 5 , sigma = 2 (znane), \bar\barX = 100 . Oblicz UCL i LCL na +/- 3sigma
Wykres X-bar z n = 5 , sigma = 2 (znane), \bar\barX = 100 . Oblicz UCL i LCL na +/- 3sigma
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