借鑒他人：諾機(jī)亞培訓(xùn)教材(參考版)
2025-05-14 18:06本頁(yè)面
【正文】 NOKIA 2001 Confidence of Cpk 9 5 % C on f i de nc e I nt e r v a l on a C pk of 1 . 6 70 . 0 0 00 . 5 0 01 . 0 0 01 . 5 0 02 . 0 0 02 . 5 0 03 . 0 0 03 . 5 0 00 50 100 150 200 250S a m p l e S i z eCpkC p k . LC p k . USmall sample sizes gives wide confidence intervals 55 169。 NOKIA 2001 Section 5. Confidence of Cpk 53 169。 NOKIA 2001 Graphical Presentation Time Series Plot Something happened here !!! 51 169。 NOKIA 2001 Graphical Presentation: Histogram ? What kind of distribution? Location versus tolerance area Width (deviation) ? Example : Cp Pp ? Cpk Ppk 49 169。 NOKIA 2001 Data Collection Sheet () 47 169。 NOKIA 2001 Section 4. Use of the NMP Data Collection Spreadsheet 45 169。 NOKIA 2001 Estimate Cp and Cpk? C) LSL USL C) Nominal Mean USL LSL 6*s USL Mean Mean LSL 3*s 43 169。 NOKIA 2001 Estimate Cp and Cpk? A) LSL USL A) Mean and nominal USL LSL 6*s USL Mean Mean LSL 3*s 41 169。 NOKIA 2001 Estimate Cp and Cpk? The width of the normal distributions shown include 177。 NOKIA 2001 The Effects of Cpk and Cp on FFR C p k Cp Pp m d e f e c t sT o t a l n u m b e r o f d e f e c t s f o r 5 0 , 0 0 0 , 0 0 0 p a rt sT o t a l n u m b e r o f d e f e c t s i f p h o n e h a s 1 0 o f t h e s e p a rt s0 . 8 1 . 3 3 8 , 2 0 0 4 1 0 , 0 0 0 4 , 1 0 0 , 0 0 01 1 . 3 3 1 , 3 5 0 6 7 , 5 0 0 6 7 5 , 0 0 01 . 3 3 1 . 3 3 63 3 , 1 5 0 3 1 , 5 0 01 . 3 3 1 . 6 7 33 1 , 6 5 0 1 6 , 5 0 01 . 5 0 1 . 5 0 7 350 3 , 5 0 01 . 6 7 1 . 6 7 1 30 3002 . 0 0 2 . 0 0 0 0 138 169。 NOKIA 2001 Cp and Cpk Indices and Defects (both tails of the normal distribution) C pk/ P pkC p/ P p0 . 1 0 . 2 0 . 3 0 . 4 0 . 5 0 . 6 0 . 7 0 . 8 0 . 9 1 . 0 1 . 1 1 . 2 1 . 3 3 1 . 4 1 . 5 1 . 6 7 2 . 0 2 . 5 3 . 0 4 . 0 % / P P M0 . 1 7 6 . 4 2 5 6 . 6 1 4 4 . 8 9 4 0 . 0 0 3 8 . 5 6 3 8 . 2 6 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 3 8 . 2 1 %0 . 2 5 4 . 8 6 3 8 . 9 3 3 1 . 0 2 2 8 . 2 5 2 7 . 5 6 2 7 . 4 4 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 2 7 . 4 3 %0 . 3 3 6 . 8 1 2 5 . 0 9 2 0 . 1 9 1 8 . 7 5 1 8 . 4 5 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 1 8 . 4 1 %0 . 4 2 3 . 0 1 1 5 . 1 0 1 2 . 3 3 1 1 . 6 4 1 1 . 5 2 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 1 1 . 5 1 %0 . 5 1 3 . 3 6 8 . 4 7 7 . 0 3 6 . 7 3 6 . 6 9 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 6 . 6 8 %0 . 6 7 . 1 9 4 . 4 1 3 . 7 3 3 . 6 1 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 3 . 5 9 %0 . 7 3 . 5 7 2 . 1 3 1 . 8 3 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 1 . 7 9 %0 . 8 1 . 6 4 0 . 9 5 0 . 8 4 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 0 . 8 2 %0 . 9 0 . 6 9 0 . 4 0 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 0 . 3 5 %1 . 0 2700 1509 1363 1350 1350 1350 1350 1350 1350 1350 1350 PPM1 . 1 967 532 485 484 483 483 483 483 483 483 PPM1 . 2 318 165 160 159 159 159 159 159 159 PPM1 . 3 3 63 38 33 33 32 32 32 32 PPM1 . 4 27 14 13 13 13 13 13 PPM1 . 5 7 3 3 3 3 3 PPM1 . 6 7 0 . 6 0 . 3 0 . 3 0 . 3 0 . 3 PPM2 . 0 0 . 0 0 . 0 0 . 0 0 . 0 PPM2 . 5 0 . 0 0 . 0 0 . 0 PPM3 . 0 0 . 0 0 . 0 PPM4 . 0 0 . 0 PPMPp=Ppk=1,33 ? 63 ppm defects = 0,006% Cp=Cpk=1,67 ? 0,6 ppm defects = 0,00006% Note: Ppm reject rates calculated from Cp amp。 NOKIA 2001 ?Cpk the process NOT CAPABLE Acceptability of Cpk Index ?Cpk = the process is CAPABLE ?Cpk = the process has reached Six Sigma level 35 169。R) 33 169。 NOKIA 2001 What is the Difference Between Cp and Cpk? ? The Cp index only accounts for pr
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