"va">first</span>, <span class="va">Vocab</span><span class="op">$</span><span class="va">second</span><span class="op">)</span> <span class="op">~</span> <span class="fl">1</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 	Paired t-test</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> data:  Pair(Vocab$first, Vocab$sec