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One-tail vs. Two-tail tests

Hi,

I am doing the means comparison using one-way ANOVA in Jmp. When I look at the detailed report, I see the p-values for both one-tail and two-tail t-tests.
However, the comparison circles seem to display according only to the two-tail confidence levels. The same about LSD (least significant difference) - it is calculated only for the two-tailed test.

Question: can I change it somewhere so that one-tail test will be used as default? If not, can I get the circles and lsd values for one-tail test somehow?

Thanks,
Mike.
10 REPLIES 10

Re: One-tail vs. Two-tail tests

OK. You're right.
Thanks.