0.00712
    95.000        0.00551        0.00729
    99.000        0.00530        0.00766
    99.900        0.00507        0.00812
    99.990        0.00489        0.00855
    99.999        0.00474        0.00895
</pre>
<p>
            So at the 95% confidence level we conclude that the standard deviation
            is between 0.00551 and 0.00729.
          </p>
<h5>
<a name="math_toolkit.stat_tut.weg.cs_eg.chi_sq_intervals.h0"></a>
            <span class="phrase"><a name="math_toolkit.stat_tut.weg.cs_eg.