How to find t test of two independent samples in MatLab?

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Gargi
Gargi 2015-6-23
评论： Star Strider 2015-6-24
I have two independent samples of data with different n's (i.e number of data). The file is attached with this. I want to calculate t test of both the samples. Kindly, help me regarding this.

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Udit Gupta
Udit Gupta 2015-6-23
Use the function ttest2 from matlab statistics toolbox.
(<http://www.mathworks.com/help/stats/ttest2.html>)

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Star Strider
Star Strider 2015-6-23
That depends on your experimental design. If you have an unpaired design (intervention on one group and not on another) use ttest2. If you have a paired design (before an after an intervention on the same group), use ttest.
Of course this requires that your data are normally distributed and meet the other assumptions of the t-test for both groups. If they do not, or you do not know the distribution, use the ranksum and signrank tests, respectively for unpaired or paired data.
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Star Strider
Star Strider 2015-6-24
My pleasure, although I would have appreciated your having Accepted my Answer if it solved your problem.

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