The rule of five requires that the:
A)observed frequency for each cell must be at least 5.
B)degrees of freedom for the test must be at least 5.
C)expected frequency for each cell must be at least 5.
D)difference between the observed and expected frequency for each cell must be at least 5.

Question

Quizplus · Accepted Answer

The rule of five requires that the expected frequency for each cell in a contingency table must be at least 5. This is because when the expected frequency is less than 5, the assumptions necessary for the validity of the statistical test may not hold, and the results of the test may be unreliable. Therefore, it is important to check the expected frequencies for each cell of a contingency table before conducting any statistical analysis.

The Rule of Five Requires That The