The chi-square test of a contingency table is valid when the expected cell frequencies are:
A)Equal to 0
B)More than 0 but less than 5
C)At least 5
D)Negative

Question

Quizplus · Accepted Answer

The chi-square test assumes that the expected cell frequencies are at least 5. This is because when the expected frequencies become too small, the chi-square distribution becomes unreliable and the test loses its validity. Therefore, only choice C, which states that the expected cell frequencies are at least 5, is valid for the chi-square test.

The Chi-Square Test of a Contingency Table Is Valid When