user manual

13-22 Inferential Statistics and Distributions
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 22 of 36
c
2
.
Test
(chi-square test; item C) computes a chi-square test
for association on the two-way table of counts in the
specified
Observed
matrix. The null hypothesis H
0
for a
two-way table is: no association exists between row
variables and column variables. The alternative hypothesis
is: the variables are related.
Before computing a
c
2
.
Test, enter the observed counts in a
matrix. Enter that matrix variable name at the
Observed:
prompt in the
c
2
.
Test editor; default=
[A]. At the Expected:
prompt, enter the matrix variable name to which you want
the computed expected counts to be stored; default=
[B].
Matrix editor:
Note:
Press
 ~ ~
1
to
select
1:[A]
from the MATRX
EDIT menu.
Input:
,
Note:
Press

[B]
Í
to
display matrix
[B]
.
Calculated results:
,
Drawn results:
c
2
-Test