Re: Concept: mass and mass

>From: John Leary <john_t_leary@yahoo.com>
>Reply-To: gzg-l@csua.berkeley.edu
>To: gzg-l@csua.berkeley.edu
>Subject: Re: Concept: mass and mass
>Date: Mon, 15 Mar 2004 20:55:44 -0800 (PST)
>
>
>--- warbeads@juno.com wrote:
> > IIRC from college stat class you need 30 samples to
> > be significant - as
> > in 30 of each ship.  Well, Jon T. will encourage
> > your research I am sure.
>
>Can I do three, ten times?
>

Depends which error you are trying to eliminate. That would eliminate
(or at 
least reduce) any errors involved in the measuring, but would still
leave 
the error associated with variation in the ships.

Richard

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