You can do a student T test in Excel with TTEST(), I assume you have similar fun... | Hacker News

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		seren on July 8, 2013 \| parent \| context \| favorite \| on: The Morality of Meditation You can do a student T test in Excel with TTEST(), I assume you have similar functions in OpenCalc.

jessriedel on July 8, 2013 [–]

OK, but is there an estimate I can do in my head? Or on the back of a napkin?

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