Originally Posted by gal

I've tried to read up on this in my old statistics book, but most of my skills in this field are long gone..

I have 4 samples of batch Y and 2 samples of batch X. How can I test whether E(X) > E(Y)? I suspect I don't have enough observations to test this. I looked up some tables on signed-rank tests and the smallest observations they had were 4 to 5. The outcome should follow the normal distribution though so maybe I can use some other test..

Y: 10269, 16806, 14023, 8307
X: 15332, 20149