Some potential difficulties arise in the chi square test when
A)sample size is small.
B)sample size is very large.
C)many cells have expected frequencies of five or less.
D)all of the above

Question

Quizplus · Accepted Answer

A) When the sample size is small, the assumptions of the test may not be met and the test may not provide accurate results due to low power. 
B) When the sample size is very large, even small deviations from expected frequencies may lead to significant results, making the test overly sensitive. 
C) When many cells have expected frequencies of five or less, the assumptions of the chi-square test may not be met, and the test may not provide accurate results. Moreover, the results may be influenced by the choice of the grouping variable, such as combining cells or collapsing categories, leading to potential bias.

Therefore, all of the above are potential difficulties in the chi-square test, and the best choice is D.

Some Potential Difficulties Arise in the Chi Square Test When