approximate) :</span></span>
<span><span class="co">##  </span></span>
<span><span class="co">##       Variable Obs Missing  Estimate Std. Err.       95% CI</span></span>
<span><span class="co">##  mri$ldl &gt; 128 735      10 0.4634483    0.0185 [0.427, 0.5]</span></span>
<span><span class="co">## Summary:</span></span>
<span><span class="co">## </span></span>
<span><span class="co">##  Ho: True proportion is = 0.5; </span></span>
<span><span class="co">##  Ha: True proportion is != 0.5 </span></span>
<spa