[R] ANOVA question

[Robert Latest]

Hello Thierry,

thanks for your answer! There is one thing, however, that I don't
understand. The values labeled "B" in my data are generated with
1/20th the variance of the others, yet the standard error and
confidence intervals are the same for all levels of the factor. How
come?


> summary(mod_lm0)$coef
       Estimate Std. Error   t value      Pr(>|t|)
LabelA 10.10138  0.3937038  25.65730  5.752714e-93
LabelB 19.79629  0.3937038  50.28218 1.226942e-196
LabelC 30.06722  0.3937038  76.37016 4.825571e-276
LabelD 40.01442  0.3937038 101.63586  0.000000e+00
LabelE 49.78282  0.3937038 126.44738  0.000000e+00


Thanks,
robert