
With Expected Count selected, the Numeric view inputs include ExpList for the expected counts instead of
ProbList and the menu key labels in the Results screen do not include Exp.
Two-way table test
Menu name
2-way test
This option uses the chi-square distribution to test the goodness of t of categorical data of observed counts
contained in a two-way table.
Inputs
The Numeric view inputs are as follows:
Field name Description
ObsMat The matrix of the observed count data in the two-way table
Results
When is tapped, the results are as follows:
Results Description
x
2
The value of the chi-square test statistic
P The probability associated with the chi-square value
DF The degrees of freedom
Menu keys
The menu key options are as follows:
Menu key Description
Opens a menu that enables you to select multiple cells to copy and paste.
Displays the matrix of expected counts. Press to exit.
Displays the matrix of contributions of each category to the chi-square value. Press
to exit.
Returns to the Numeric view.
Chi-square tests 285
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