SlopeConfidenceInterval</h4>
<pre>public&nbsp;double&nbsp;getSlopeConfidenceInterval(double&nbsp;alpha)
                                  throws <a href="../../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></pre>
<div class="block">Returns the half-width of a (100-100*alpha)% confidence interval for
 the slope estimate.
 <p>
 The (100-100*alpha)% confidence interval is </p>
 <p>
 <code>(getSlope() - getSlop