s and Workers</h2>

<h3>Description</h3>

<p>The <code>Machines</code> data frame has 54 rows and 3 columns.
</p>


<h3>Format</h3>

<p>This data frame contains the following columns:
</p>

<dl>
<dt>Worker</dt><dd>
<p>an ordered factor giving the unique identifier for the worker.
</p>
</dd>
<dt>Machine</dt><dd>
<p>a factor with levels
<code>A</code>, 
<code>B</code>, and 
<code>C</code> identifying the machine brand.
</p>
</dd>
<dt>score</dt><dd>
<p>a productivity score.
</p>
</dd>
</dl>



<h3>Details</h3>