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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,
c
2,
Ü
t,
Ü
TEST
degrees of freedom
df df df TEST
sample mean of x values for sample
1 and sample 2
v
1,
v
2
v
1,
v
2 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
Ç
1
Ç
1 TEST
estimated sample proportion for
population 2
Ç
2
Ç
2 TEST