<code><span><span class="co">## </span></span>
<span><span class="co">## Call:</span></span>
<span><span class="co">## ttesti(obs = length(mri$weight), mean = mean(mri$weight), sd = sd(mri$weight), </span></span>
<span><span class="co">##     null.hypoth = 155)</span></span>
<span><span class="co">## </span></span>
<span><span class="co">## One-sample t-test :</span></span>
<span><span class="co">##  </span></span>
<span><span class="co">## Summary:</span></span>
<span><span class="co">##      Obs Mean Std.