bers with indices `i` and `j` of arr.
Noop when `i` equals `j`.</pre></div><hr><div class="binding"><span id="math/t-test" class="binding-sym">math/t-test</span> <span class="binding-type">function</span> <span class="binding-type"><a href="https://github.com/janet-lang/spork/blob/7fd743ac09e857fe0ebd333bd7a56cd0df3876c3//spork/math.janet#L446">source</a></span> <pre class="binding-text">(t-test xs expv)

Computes one sample t-test comparing the mean of `xs`
to known value `expv`.</pre></div><hr><div class=