In a chi-square test of independence with 6 degrees of freedom and a level of significance of 0.05, the critical value from the chi-square table is 12.5916 . The computed value of the test statistics is 11.264 . This will lead us to reject the null hypothesis.
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Q. 2A chi-square test for independence is applied to a contingency table with 3 rows and 5 columns for two qualitative variables. The degrees of freedom for this test is 8.
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Q. 3The chi-square test statistic for a contingency table with r rows and c columns can be negative if r is much smaller than c.
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Q. 4The degrees of freedom associated with a chi-square test of independence where data are summarized in a contingency table with r rows and c columns equal the number of rows times the number of columns in the table; that is, rc.
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Q. 5To be valid, a chi-square test of independence requires that the expected frequency for each cell in the contingency table equal 10 or more.
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Q. 6Numbers in a contingency table show the frequency of occurrence of all possible combinations of categories.
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