Lets say I do a x2(chi) test and have the hypothesis:
Ho: there are no differences in opinion between techers and students
Ha: there are differences in opinion between techers and students
Can it only then be:
If X2 obs(observation) is > 2.32(for example) then Ho is rejected. So
if X2 obs is 3.20 Ho is rejected.
Or can it in some cases be:
If X2 obs is < 2.32 then Ho is rejected. So if X2 obs is 1.20 Ho is
rejected.
If you can have < in hypothesis, then when is it < and when is it > I
should use? How do I know which one to use?
I also wonder about t-tests the same question. When do I know if I
should use < or >?
Janne
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