spc統(tǒng)計(jì)分析方法介紹-文庫吧在線文庫
【正文】 2Sample t Test? Testing mean 1 = mean 2 (versus not =)? Calculating power for mean 1 = mean 2 + difference? Alpha = Sigma = 1? Sample? Difference Size Power? 30 ? MINITAB 應(yīng)用 (Power value in two sample ttest)假設(shè)檢驗(yàn)8, 勢 (power), 樣本大小，差異計(jì)算? MINITAB 應(yīng)用 (Sample size in two sample ttest)? Power and Sample Size? 2Sample t Test? Testing mean 1 = mean 2 (versus not =)? Calculating power for mean 1 = mean 2 + difference? Alpha = Sigma = 1? Sample Target Actual? Difference Size Power Power? 86 假設(shè)檢驗(yàn)8, 勢 (power), 樣本大小，差異計(jì)算? MINITAB 應(yīng)用 (Difference in two sample ttest)? Power and Sample Size? 2Sample t Test? Testing mean 1 = mean 2 (versus not =)? Calculating power for mean 1 = mean 2 + difference? Alpha = Sigma = 1? Sample? Size Power Difference? 30 假設(shè)檢驗(yàn)ANOVA? 1，實(shí)例 Swage ball size optimize evaluation? 2，原理? 3， ANOVA in MINITABANOVA1， 實(shí)例 介紹? 例 Swage ball size optimize evaluation– 響應(yīng)變量 (Response): gramload– 因子 /水平 (Factor/level):1, swage ball size(79/80/81mil, 79/, 79/81/82mil, 79/)2, Heads（ HD2, HD3)– 試驗(yàn)次數(shù) : 20*8=160– 平衡設(shè)計(jì)– 方差分析 (twoway)– MINITAB: Stat?ANOVA?ANOVA1， 實(shí)例 方差分析表Twoway ANOVA: Gramload versus Head, GroupAnalysis of Variance for GramloadSource DF SS MS F PHead 1 Group 3 Interaction 3 Error 152 Total 159 P，有顯著性影響。例： 1， H0: u1=u2←→ H1:u1≠ u2 2， H0: u1u2←→ H1:u1 ≤ u2 3， H0: u1u2←→ H1:u1 ≥ u2與區(qū)間估計(jì)一致假設(shè)檢驗(yàn)2,兩類風(fēng)險(xiǎn)? 第一類風(fēng)險(xiǎn)（生產(chǎn)方風(fēng)險(xiǎn)） α– 當(dāng) H0成立時(shí)，拒絕 H0的概率? 第二類風(fēng)險(xiǎn)（使用方風(fēng)險(xiǎn)） β – 當(dāng) H0不成立時(shí)，接受 H0的概率– 勢 (power)? 第一類風(fēng)險(xiǎn)與置信水平假設(shè)檢驗(yàn)3,平均值的假設(shè)檢驗(yàn)1, 檢驗(yàn)總體平均值是否等于指定值 u02, 原假設(shè)和對立假設(shè) : H0 U=u0 ??H1 Uu0 3, 檢
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