Texas Instruments TI-83 Manual Book page 251

2.SampTTest
Input:
Calculated results:
Drawn results:
(two-sample t test; item
2.SampTTest
of the means of two populations (m
independent samples when neither population standard
or s
deviation (s
1
: m
H =m is tested against one of the alternatives below.
0 1 2
: m ƒm
H ( m1:ƒm2
a 1 2
: m
H <m (
m1:<m2
a 1 2
: m
H >m (
m1:>m2
a 1 2
In the example:
SAMP1={12.207 16.869 25.05 22.429 8.456 10.589}
SAMP2={11.074 9.686 12.064 9.351 8.182 6.642}
Data
,
,
Inferential Statistics and Distributions 13-13
) is known. The null hypothesis
2
)
)
)
) tests the equality
4
and m
) based on
1 2
Stats
,
,