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

Multiple Choice

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.