Texas Instruments TI-83 PLUS - Manual (Page 423)

TI-83 Plus Inferential Statistics and Distributions 420
Input Description
s 2 The known population standard deviation from the
second population for the two-sample tests and intervals.
Must be a real number > 0.
List1 , List2 The names of the lists containing the data you are testing
for the two-sample tests and intervals. Defaults are
L1
and L2 , respectively.
Freq1 , Freq2 The names of the lists containing the frequencies for the
data in
List1 and List2 for the two-sample tests and
intervals. Defaults=1. All elements must be integers | 0.
v 1 , Sx1 , n1 , v 2 , Sx2 ,
n2
Summary statistics (mean, standard deviation, and
sample size) for sample one and sample two in the two-
sample tests and intervals.
Pooled Specifies whether variances are to be pooled for
2 . SampTTest and 2 . SampTInt. No instructs the TI . 83 not to
pool the variances. Yes instructs the TI . 83 to pool the
variances.
p
0
The expected sample proportion for 1 . PropZTest . Must be
a real number, such that 0 < p
0
< 1.
x The count of successes in the sample for the 1 . PropZTest
and 1 . PropZInt. Must be an integer ‚ 0.
n The count of observations in the sample for the
1 . PropZTest and 1 . PropZInt . Must be an integer > 0.
x1 The count of successes from sample one for the
2 . PropZTest and 2 . PropZInt . Must be an integer ‚ 0.