【单选题】在4 个因子A、B、C、D 的全因子设计中,增加了3 个中心点的试验。分析试验结果,用MINITAB软件计算,其结果如下: Factorial Fit: y versus A, B, C, D Analysis of Variance for y (coded units) Source DF Seq SS Adj SS Adj MS F P Main Effects 4 8.16108 8.16...
【单选题】---Was your holiday trip to Europe amazing? ---Not really! But___________we got back safe, before the European airspace restriction caused by the Icelandic volcano ashes.