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





------- Additional comments from [EMAIL PROTECTED] Mon Jun 16 10:13:55 +0000 
2008 -------
Thanks, Leonard
It's difficult to see exactly what R is calculating. I've tried to go back to 
basics to show that there is some logic/validity to Excel's method, and indeed 
that there is a clear bug with Calc, with the 3 parameter version.

I've tried to get z.test to work in R but failed after a brief struggle. What 
happens if you set 
alternative (Direction of the alternative hypothesis) to 'greater', or 'less' 
or even 'two.sided'? I think Excel produces a 'one-sided' (not 'one-tailed') 
test which might correspond to 'greater'.


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