If X and Y are different variables, say number of apples eaten per week
for X and number of words spelled correctly for Y, then the result would
be meaningless.
If X and Y are the same variable( say number of apples eaten per week)
for samples from two groups (say males and females) then the t-test
would tell you whether the apparent difference is large enough to be
inconsistent with the size differences that can arise simply from random
sampling from a single population.
Rahat Bokhari wrote:
> Data for two indenedent variables let for X and Y is available as
> below:
> For Variable X Mean = 5.61 SD= 0.68
> For Varable Y Mean = 5.10 SD= 1.01
> Sample N=40
> Can I calculate 't' by using such "Difference in Means"
> Thanks.
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