Texas Instruments TI-83 PLUS - Manual (Page 727)

TI-83 Plus Tables and Reference Information 724
where: I = number of populations
x
i
= the mean of each list
Sx
i
= the standard deviation of each list
n
i
= the length of each list
x
= the mean of all lists
2 . Samp Ü Test
Below is the definition for the 2 . Samp Ü Test.
Sx1 , Sx2 = Sample standard deviations having n
1
-1 and n
2
-1
degrees of freedom df , respectively.
Ы = Ы -statistic =
2
2
1






Sx
Sx
df ( x, n
1
-1, n
2
-1 ) = Ûpdf ( ) with degrees of freedom df , n
1
-1 , and n
2
-1
p = reported p value