参数估计值表 Parameter estimates Dependent variabl:增重 95% Confidence Interval Noncent.Observed Std. Error Lower Bound Upper Bound Parameter Power Intercept -24.544 20.726 -1.184 259 69.701 1184 饲料 .033 8.089 .342 8.089 1.000 [分组=1] 2.082 5.572 374 715 -10.057 14.221 374 064 分组=2] a. Computed using alpha=. 05 b. This parameter is set to zero because it is redundant 公共回归系数不为零 分组 边缘均数表 Dependent variable:增重 95% Confidence Interval 消除协变量对增重 分组 Mean Std. ErrorLower Bound Upper bou的影响,显示调整 母乳组126.174 2.892 119.873 132475 奶粉组1240923 4.326 114.667 133.517 后的均数、标准误 a Evalu ated at covariates appeared in the model: iat 及95%可信区间 551.060.分 组 Dependent Variable: 增 重 126.174a 2.892 119.873 132.475 124.092a 4.326 114.667 133.517 分 组 母乳组 奶粉组 Mean Std. Error Lower Bound Upper Bound 95% Confidence Interval Evaluated at covariates appeared in the model: 饲 料 = 551.060. a. 参数估计值表 Parameter Estimates Dependent Variable : 增 重 -24.544 20.726 -1.184 .259 -69.701 20.613 1.184 .194 .270 .033 8.089 .000 .197 .342 8.089 1.000 2.082 5.572 .374 .715 -10.057 14.221 .374 .064 0 b . . . . . . . Parameter Intercept 饲 料 [分 组=1] [分 组=2] B Std. Error t Sig. Lower Bound Upper Bound 95% Confidence Interval Noncent. Parameter Observed Powera a. Computed using alpha = .05 b. This parameter is set to zero because it is redundant. 公共回归系数不为零 边缘均数表 消除协变量对增重 的影响，显示调整 后的均数、标准误 及95%可信区间