[R] T-test

[Rolf Turner]

On 12/08/2008, at 3:11 AM, Angelo Scozzarella wrote:

> How can I make a t-test if I haven't got all data set but I  know  
> the numbers
> of subjects for each group, the mean and di standard deviation for  
> each group?

Use your head.  I.e. do the same thing you'd do if you weren't using  
a computer,
but get R to do the arithmetic for you.

	cheers,

		Rolf Turner

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