nction:</p>
<div class="sourceCode" id="cb12"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="fu"><a href="../reference/ttesti.html">ttesti</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/length.html" class="external-link">length</a></span><span class="op">(</span><span class="va">mri</span><span class="op">$</span><span class="va">weight</span><span class="op">)</span>, <span class="fu"><a href="https://rdrr.io/r/base/mean.html" class="ex