ond)</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> t = -2.2958, df = 13, p-value = 0.03896</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> alternative hypothesis: true mean difference is not equal to 0</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 95 percent confidence interval:</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  -7.4866946 -0.2275911</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> sample estimates:</span>
<span class="r