= Р4 158.000 24 165.000 44 64 84 (X1-X)2+(X2-X)2+…+(Xn-X)2 Р5 150.000 25 163.000 45 65 85 n-1 Р6 161.000 26 158.000 46 66 86 Р7 161.000 27 162.000 47 67 87 Upper Limit=Su Р8 165.000 28 152.000 48 68 88 Low Limit=SL Р9 159.000 29 154.000 49 69 89 Ca=(X-u)/(T/2)-----Two ways Р10 155.000 30 155.000 50 70 90 Ca=whithout ------Single way Р11 156.000 31 51 71 91 Cp=T/6 sigma -----Two ways Р12 147.000 32 52 72 92 Cp=(Su-X)/(3*Stdev) Р13 162.000 33 53 73 93 or (X-SL)/(3*Stdev) -----Single way Р14 165.000 34 54 74 94 CPK= Cp*(1- Ca )----Two ways) Р15 149.000 35 55 75 95 or = Cp ------Single way Р16 148.000 36 56 76 96 Р17 146.000 37 57 77 97 Target: CPK ≧1.33 Р18 149.000 38 58 78 98 Regular:1.0≦CPK<1.33 Р19 141.000 39 59 79 99 Improvement Needed: CPK<1.0 Р20 150.000 40 60 80 100 Р Р批准: 做成:谭智鹏记录:钱小峰
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