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Subject: [OASIS Issue Tracker] Commented: (OFFICE-2300) ZTEST

    [ http://tools.oasis-open.org/issues/browse/OFFICE-2300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17485#action_17485 ] 

Andreas Guelzow  commented on OFFICE-2300:

Note that the proposed resolution does not change the semantics from what is implemented in OOo, Excel and Gnumeric so there is clearly no need of changing the name.

> -----
>                 Key: OFFICE-2300
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-2300
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Sub-task
>          Components: OpenFormula
>    Affects Versions: ODF 1.2
>            Reporter: Robert Weir 
>            Assignee: Andreas Guelzow 
> == 6.17.86 ZTEST ==
> The draft specification defines the result as 1-P(-|z| <= Z <= |z|), 
> which is a two-tailed form. But the current implementations use a 
> one-tailed form. Besides a real bug in OOo, Excel and OOo return
> 1-P( Z<=z) for z>=0 and
> P( Z <= |z|) for z<0
> Gnumeric returns P( Z <= |z|) for z<0 too, but I do not understand the 
> result in Gnumeric for z>=0.
> In other cases of changed semantic, for example the change from right 
> tail to left tail in CHIDIST, for the old version LEGACY was introduced. 
> Shouldn't there be a differentiation in the case of ZTEST too? I know 
> the specification is only about the internal names and using a prefixed 
> name for the old version internally is possible. But the names in the 
> specification give a strong hint how the functions should be named in 
> the UI of the applications and unique names in different applications 
> would make working with different applications much easier for users.

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