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Hi, I am unsure about the choice of statistical test for my experiment design. I have four experimental groups, devided by two factors: disease (disease/healthy) and genotype (wild-type/knockout). Groups: wild-type & disease, wild-type & healthy, knockout & disease, knockout & healthy. I am...

Hi, I am comparing four groups (measurements of bone thickness and other bone parameters). The distributions are normal (Kolmogorov–Smirnov test) and variances equal between groups (Levenes test). I have 7 samples in each group. As I see from the literature this would call for a parametric...