Hello dear community,
I am comparing the means of three (small) samples. I have three groups (A, B, C). If I compare them in two steps (A with B, B with C) I get significant mean difference according to t-test and pooled t test.
However, if I run a comparison on A, B and C at the same time, using "Each pair Student's t" , I get no significant difference.
(Example is provided as a picture).
Could someone please help me understand the theory behind the difference in the results ?
Thank you very much !
