TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App ˆ Tests Menu 160
Chi2 2-way
Description
2 ˆ (
Tests) Æ 8:Chi2 2-way for the TI-89
ˆ (Tests) Æ 8:Chi2 2-way for the TI-92 Plus / Voyage™ 200 PLT
c
2
.Test (chi-square test) computes a chi-square test for association on the two-way table
of counts in the specified
Observed Mat. 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.
Inputs
Observed Mat The matrix of observed values.
Store Expected to The computed matrix of expected values.
Store CompMat to The computed matrix of contributions.
Results
(Calculate or Draw)
Calculate: Display numerical and symbolic test results in a dialog box.
Draw: Draw a graph of the test results.
Outputs
Outputs Stored to Description
Chi-2 chi2 Chi square stat: sum (observed - expected)^2/expected
P Value pval Least probability at which the null hypothesis can be rejected.
df df Degrees of freedom for the chi square statistics.
Exp Mat expmat Matrix of expected elemental count table, assuming null hypothesis.
Comp Mat compmat Matrix of elemental chi square statistic contributions.
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