>=</span> <span class="st">"Hours per week spent on homework"</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="Homework-1.png" alt="" width="700" height="433"></span>
<span class="r-in"><span><span class="co">#</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/stats/t.test.html" class="external-link">t.test</a></span><span class="op">(</span><span class="va">time</span> <span class="op">~</span> <span class="va">school</span>, data <span