What are the pairs in the “each pair student’s t-test”?
I have analyzed 14 samples (named sample 1-sample 14) with 2 different methods (named method 1 and method 2).I want to see whether there is a difference between method 1 and method 2.The result of the measurement is concentration in ppm. The different samples have contents between 65 and 1200 ppm.I analyzed each sample 2-3 times with method 1 and 3 times with method 2.The leverage plot shows that ...