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http://www.openoffice.org/issues/show_bug.cgi?id=90759


User regina changed the following:

                What    |Old value                 |New value
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OtherIssuesDependingOnTh|                          |18704
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                Keywords|                          |oooqa
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------- Additional comments from [EMAIL PROTECTED] Tue Jun 17 14:33:38 +0000 
2008 -------
Improving the statistical functions is an ongoing process. The function ZTEST
should depend on NORMSDIST. Therefore NORMSDIST has to be controlled and
improved first.

Excel is not good for comparison because EXCEL has only 7 digit accuracy very
often. Calc should give better accuracy if possible. It would be nice to get a
test document, which has correct results up to 15 digits for to see how good a
new implementation of ZTEST is.

You will find information on Excel's ZTEST on
http://office.microsoft.com/en-us/excel/HP052042111033.aspx?pid=CH062528191033
or the corresponding one for EXCEL 2007.

A better place to discuss how to implement ZTEST is not this issue but the
mailing list [EMAIL PROTECTED]

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