Texas Instruments TI-84 Plus Manual Book page 186

The mean squares (MS) that make up Ü are:
FactorMS
ErrorMS
The sum of squares (SS) that make up the mean squares are:
FactorSS
ErrorSS
The degrees of freedom df that make up the mean squares are:
Factordf =
Errordf =
where: I =
=
x
i
=
Sxi
=
ni
=
x
2-SampFTest
Below is the definition for the
Sx1, Sx2
Ü
n 1 – n
df(x, ,
1
p
180
FactorSS
------------------------
=
Factordf
ErrorSS
---------------------
=
Errordf
I
∑
( )
= n x x –
i i
i = 1
I
∑
( )Sx
= n 1 –
i
i = 1
I 1 – = numeratordf for
I
∑
( )
n – 1 =
i
i = 1
number of populations
the mean of each list
the standard deviation of each list
the length of each list
the mean of all lists
2
= Sample standard deviations having
and
respectively.
= Û-statistic =
= Ûpdf( ) with degrees of freedom df,
1 –
)
2
and
= reported p value
2
2
i
Ü
denominatordf for
Ü
- .
Samp Test
n 1 –
degrees of freedom df,
2
⎛ ⎞
Sx1
-------- -
⎝ ⎠
Sx2
n 1 –
2
Appendix B: Reference Information
Ü
2
n 1 –
1
n 1 –
,
1