Texas Instruments TI-83 ,

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

c2.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 H0 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 c2.Test, enter the observed counts in a

matrix. Enter that matrix variable name at the Observed:

prompt in the c2.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:

2-Test