On Dec 22, 5:22 pm, czytaczg...@gmail.com wrote: > [...] > > according to the KS test they come from the same distribution:
NO. You misunderstand the logic of hypothesis testing. Failing to reject a hypothesis does not mean that it is true or that you should act as if it were true. It means only that, in the way that the test looks at data, your data are not inconsistent with the hypothesis. Other tests, that look at the data differently, may well disagree.