TI-83 Plus Inferential Statistics and Distributions 422
Test and Interval Output Variables

The inferential statistics variables are calculated as indicated below. To

access these variables for use in expressions, press , 5

(5:Statistics), and then select the VARS menu listed in the last column

below.

Variables Tests Intervals LinRegTTest
ANOVA VARS
Menu
p-value p p TEST
test statistics z, t, c2, Üt, ÜTEST
degrees of freedom df df df TEST
sample mean of x values for sample
1 and sample 2 v1, v2v1, v2 TEST
sample standard deviation of x for
sample 1 and sample 2 Sx1,
Sx2
Sx1,
Sx2
TEST
number of data points for sample 1
and sample 2 n1, n2 n1, n2 TEST
pooled standard deviation SxP SxP SxP TEST
estimated sample proportion ÇÇ TEST
estimated sample proportion for
population 1 Ç1Ç1 TEST
estimated sample proportion for
population 2 Ç2Ç2 TEST