tuv德國萊茵技術(shù)六西格碼培訓(xùn)資料basicstatisticsforspc-資料下載頁
2025-01-14 00:23本頁面
【正文】 07批號Y4092BY4092BY4092BY4092BY4092BY4092BY4092BY4092BY4092BY4095BY4095BY4095BY4095BY4095BY4095BY4095BY4095BY4095BY4095BY4095BMFI批號Y4167BY4167BY4167BY4167BY4167BY4167BY4167BY4167BY4167BY4167BY4167BY4228BY4228BY4228BY4228BY4228BMFI批號Y4240BY4240BY4240BY4240BY4240BY4240BY4240BY4240BY4241BY4241BY4241BY4241BY4241BY4241BMFI90370570400098Melt Flow Index of Plastics某塑膠材料的流動(dòng)性數(shù)據(jù)子組大小不同時(shí)SPCMFIMFIAverage:MFISPC? 第一張圖顯示的是所有的原始數(shù)據(jù)（按批號分開）假設(shè)每一組都為正態(tài)分布。? “第二張圖顯示的是各批的變差情況，其 “ 平均 ”的標(biāo)準(zhǔn)偏差為 . 計(jì)算方法如下Sst = g229。 (nj1) sj2= [8()2 + 10() 2 + 10() 2 + 4() 2 + 7() 2 + 5() 2 ] [506]= 其中 : g 為數(shù)據(jù)組的個(gè)數(shù) (批 )。n 為測量值的個(gè)數(shù) ? 第三張圖顯示的是將 50 個(gè)數(shù)據(jù)全部合并一起，計(jì)算總的標(biāo)準(zhǔn)偏差為 （長期標(biāo)準(zhǔn)偏差 ) : Slt = j = 1(ng)SPCDiscussion question: What information is provided by the difference in Zst and Zlt?實(shí)例計(jì)算練習(xí)假定規(guī)范為 —? The sample mean of the 50 observations is y = __________.? The overall sample standard deviation is s lt = _______.? The weighted average of the lot standard deviations (variances) is sst = ______.? The target specification value is assumed to be centered at T =_____.? The capability index (potential) is Cp = _______________.? The short term Zst = 3 Cp = ________________.? The upper capability index is Cpu = _____________________.? The lower capability index is Cpl = ______________________.? The capability index is Cpk = min {Cpu, Cpl}=___________________.? The upper performance index is Ppu = ____________________.? The lower performance index is Ppl = ____________________.? The performance index Ppk = min {Ppu, Ppl}= ________.? The longterm Zlt = 3 Ppk = _____________. SPC? The sample mean of the 50 observations is y=.? The overall sample standard deviation is slt=.? The weighted average of the lot standard deviations (variances) is sst=.? The target specification value is assumed to be centered at T = .? The capability index (potential) is Cp = = .? The short term Zst = 3 x () = .? The upper capability index is Cpu =? The lower capability index is Cpl =? The capability index is Cpk = min{, } = .? The upper performance index is Ppu = ? The lower performance index is Ppl =? The performance index Ppk = min {Ppu, Ppl} = .? The long term Zlt = 3() = . ()6()()3() = .()3() = .()3() = .()3() = .Discussion question: What information is provided by the difference in Zst and Zlt?習(xí)題答案SPC謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAIT
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