"op">)</span></span>
<span><span class="co">##   statistic    p.value</span></span>
<span><span class="co">## 1  2.407318 0.02265982</span></span></code></pre></div>
<p>Note that all three functions express the hypothesis test as a
two-tailed test by default. If we wanted to specify a one-tailed
(directional) hypothesis, we can set <code>tailed = "one"</code> in any
of the functions. Note that if we do so, we must specify the direction.
In the case of <code>resampled_ttest</code> and
<code>kfold_ttest</code