You might object that the effect should be symmetrical, and they just as well could have been caught at a low cholesterol moment at the beginning of the study. However, if that had been the case, they wouldn't have been allowed to participate in the study, because they wouldn't appear to have high cholesterol.
Al final de ese estudio, las probabilidades son que mostrarán una lectura menor. Usted podría objetar que el efecto debe ser simétrico y que ellos también pudieron haber sido tomados en un momento de colesterol bajo al inicio del estudio.