6sigma某工作案例-3(ppt 15頁)-文庫吧
2025-02-19 11:58 本頁面
【正文】 (*) K523 5 (*) K524 5 (*) +++Pooled StDev = Oneway ANOVA: C/L Diameter_1 versus Nut CavityAnalysis of Variance for C/L DiamSource DF SS MS F PNut Cavi 23 Error 96 Total 119 【【 續(xù)上】續(xù)上】對 CKD Mould 與其他全部Cavity別 2Sample T TestNOV232023 2ATwoSample TTest and CI: K52, C**Twosample T for K52 vs C** N Mean StDev SE MeanC** 20 K52 20 Difference = mu K522 mu K523Estimate for difference: 95% CI for difference: (, )TTest of difference = 0 (vs not =): TValue = PValue = DF = 37 假設(shè)： H0： K52 = C**(精熙 Mould) H1： K52≠C**v PValue,所以丟棄 H0。 取 H1（ 即 K52≠C**）v結(jié)論： CKD 模具 Cavity別與其他 Mould外徑尺寸有差異。v對策：全部使用現(xiàn)地化部品。停止使用 CKD資材【【 續(xù)上】續(xù)上】NOV232023 3A對 Day ， Line ， Shift Time 進(jìn)行多變量分析如下3）） Line(Operator) Analysis vD – 6 Line 有工程不良有異常NOV232023 4APValue 對各個 Factor 進(jìn)行KruskalWallis TestDefect Data Analysis for LineNOV232023 5Line – Defect AnalysisANOV232023 6Defect Effect by Line Analysis AFactory PValue Significant (P) Time NO Shift NO Line YES( D6 line) Day NONOV232023 7ChiSquare Test: OK, NGExpected counts are printed below observed counts OK NG TotalMachine1 23256 53 2
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