# Welch's T-test in Go

Oct 15, 2015 · 1 minute read · CommentsI wrote some code for doing a Welch’s T-Test in Go. You can read up on what a Welch’s t-test is here but in short it’s a significance test for the difference between two treatments (like in an A/B test) where the distributions may have unequal variances.

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So if you are doing an A/B test and you have the mean and variance of each treatment, you can get a confidence measure for whether the mean of one is truly higher than the mean of the other.

Here’s the code: https://github.com/katbailey/welchttest