When a category in a contingency table has an expected frequency of less than five,
A)switch from a one-tailed test to a two-tailed test
B)conclude that the two variables are independent
C)double the expected frequency in every category
D)combine two adjacent categories to obtain an expected frequency of five or more

Question

Quizplus · Accepted Answer

When a category in a contingency table has an expected frequency of less than five, it is recommended to combine two adjacent categories to obtain an expected frequency of five or more to ensure the validity of the statistical test.

When a Category in a Contingency Table Has an Expected