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Re: MeanTest Function not Working

  • To: mathgroup at
  • Subject: [mg68373] Re: MeanTest Function not Working
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at>
  • Date: Thu, 3 Aug 2006 06:06:31 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <eaprit$s2r$>
  • Sender: owner-wri-mathgroup at

Gregory Lypny wrote:
> Hello everyone,
> I've loaded the HypothesisTests package.  The MeanDifferenceTest  
> function works fine, but not the MeanTest.  Mathematica doesn't seem  
> to recognize it, and simply returns the name of the function and the  
> data series as MeanTest[{... numbers ...}].  Is the MeanTest an  
> obsolete function or am I doing something wrong?
> Regards,
> 	Gregory
Hi Gregory,

At least in Mathematica version 5.2, the built-in function MeanTest 
requires TWO parameters, that is the data and the mean. Your "example"
exhibits only a list of numbers. From the online help

"MeanTest[list, mu0, options] returns a probability estimate (p-value) 
and other hypothesis test information for the relationship between the 
hypothesized population mean mu0 and Mean[list]."


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