Re: [R] how to prove that the factor makes no difference

Xiang Gao-2 wrote: > > How can we prove that the treatment did not make any difference in the > amount of protein A. In another word, Pre- and post- are the same. > There is no way to "prove" that there is no difference. While you could use some alternative hypothesis, people rarely understand

[R] how to prove that the factor makes no difference

Dear R-helper, Please suggest some methods for my question below. We measured the amount of protein A in patient blood in pre-treatment and post-treatment condition from 32 patients. Pre-treatment Post-treatment Pat1 25