[R] Odp: Using t tests
petr.pikal at precheza.cz
Fri Jul 8 11:39:56 CEST 2011
> [R] Using t tests
> Dear Sir,
> I am doing some work on a population of patients. About half of them are
> admitted into hospital with albumin levels less than 33. The other half
> albumin levels greater than 33, so I stratify them into 2 groups, x and
> I suspect that the average length of stay in hospital for the group of
> patients (x) with albumin levels less than 33 is greater than those with
> albumin levels greater than 33 (y).
> What command function do I use (assuming that I will be using the chi
> square test) to show that the length of stay in hospital of those in
group x is
> statistically significantly different from those in group y?
I am not an expert statistician but you suggested t test which seems to me
About how to use it see
> I look forward to your thoughts.
> Ivo Gwanmesia
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