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gal · 10-16-2005, 07:31 AM

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

10-16-2005, 07:31 AM	#1 (permalink)
gal Insane	Test of mean for small samples 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