In chi-square tests,the conventional and conservative rule,known as the Rule of Five,is to require that:
A) observed frequency for each cell be at least five.
B) degrees of freedom for the test be at least five.
C) expected frequency for each cell be at least five.
D) difference between the observed and expected frequency for each cell be at least five.

Question

Quizplus · Accepted Answer

The Rule of Five in chi-square tests requires that the expected frequency for each cell be at least five. This is important to ensure that the chi-square test accurately reflects the underlying distribution and that the assumptions of the test are met. When expected frequencies are below five, the test may be unreliable and may lead to incorrect conclusions. Therefore, it is important to either combine categories or use alternative statistical methods when expected frequencies are below five.

In Chi-Square Tests,the Conventional and Conservative Rule,known as the Rule