Siarhei Khamenka created MATH-1086:
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Summary: Incorrect results from
BinomialConfidenceInterval#getWilsonScoreInterval
Key: MATH-1086
URL: https://issues.apache.org/jira/browse/MATH-1086
Project: Commons Math
Issue Type: Bug
Affects Versions: 3.3
Reporter: Siarhei Khamenka
Fix For: 3.3
It looks like BinomialConfidenceInterval#getWilsonScoreInterval produces not
accurate results for interval lower bound.
E.g. for input (10,9,0.95) it returns 0.818 instead of 0.596;
for input (10,10,0.95) it returns 0.856 instead of 0.722.
Used also
http://epitools.ausvet.com.au/content.php?page=CIProportion&SampleSize=10&Positive=9&Conf=0.95&Digits=3
and http://www.measuringusability.com/wald.htm to verify it.
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