If H0 is true in a chi-square test of independence, then the expected and observed.
A)means in a cell of a contingency table should be about equal
B)standard deviations in a cell of a contingency table should be about equal
C)frequencies in a cell of a contingency table should be unequal
D)frequencies in a cell of a contingency table should be about equal

Question

Quizplus · Accepted Answer

If H0 is true in a chi-square test of independence, then there should be no significant difference between the observed frequencies and the expected frequencies. This means that the frequencies in a cell of a contingency table should be about equal since the expected frequencies are calculated based on the assumption of equal proportions. Choice A is incorrect because the means are not relevant in a chi-square test of independence. Choice B is incorrect because standard deviations are not used in this test. Choice C is incorrect because the frequencies should be roughly equal for H0 to be true.

If H0 Is True in a Chi-Square Test of Independence