P value of R t.test() function

Question

I understand that, the function t.test provides several statistical values, along with a p-value. However, I am not sure if this is a one sided, or two sided p-value.

Could someone tell me which p-value does it give as output?

score 3 · Accepted Answer · answered Sep 27 '13 at 23:36

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From ?t.test - my emphasis:

alternative: a character string specifying the alternative hypothesis, must be one of '"two.sided"' (default), '"greater"' or '"less"'. You can specify just the initial letter.

answered Sep 27 '13 at 23:36

dardisco

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+1 for politely indicating to the OP that they could have RTFM ... – Ben Bolker Sep 27 '13 at 23:44

P value of R t.test() function

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