pan class="op">(</span><span class="st">"coffee"</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="format">Format<a class="anchor" aria-label="anchor" href="#format"></a></h2>
    <p>A data frame with 20 observations on the following 4 variables.</p><dl><dt><code>Group</code></dt>
<dd><p>university group, a factor with levels <code>Grad_Student</code> <code>Professor</code> <code>Student</code></p></dd>

    <dt><code>Coffee</code></dt>
<dd><p