 +t^*)\)</span>. The <span class="math inline">\(t\)</span>-distribution is symmetric around
<span class="math inline">\(t=0\)</span>, thus <span class="math inline">\(P(t &lt; -t^*) = P(t &gt; t^*)\)</span>.</p>
<p>The table below provides the critical boundary values <span class="math inline">\(t^*\)</span> for much used critical probabilities <span class="math inline">\(p\)</span> and
confidence intervals <span class="math inline">\(B\)</span>, for the degrees of freedom indicated in the first column.</p