13–22 Inferential Statistics and Distributions
8250FC~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:39 PM Printed: 10/27/05 2:57
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:
STAT TESTS Menu (continued)
c
2
.Test
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