The test statistic for the chi-square tests in our textbook requires, for each category, an expected frequency of at least
A)2
B)5
C)10
D)30

Question

Quizplus · Accepted Answer

The generally accepted rule of thumb is that expected frequencies should be at least 5. With expected frequencies below 5, the chi-square distribution may not accurately approximate the true distribution of the data, leading to inaccurate results. Therefore, the best choice is B, which requires an expected frequency of at least 5 for each category.

The Test Statistic for the Chi-Square Tests in Our Textbook