Under what circumstances should the chi-square statistic not be used? A)if f_e 5 for any cell B)if f_e

Question

Under what circumstances should the chi-square statistic not be used? A)if f_e > 5 for any cell B)if f_e < 5 for any cell C)if f_e = f_o for any cell D)if f_e =7 for any cell

Quizplus · Accepted Answer

If the expected frequency (e) in any cell is less than 5, the chi-square test may not be reliable and alternative methods like Fisher's exact test should be considered. A rule of thumb states that at least 80% of the cells should have an expected frequency of 5 or more. Therefore, option B is correct, and options A, C, and D are not relevant criteria for deciding whether to use the chi-square test.

Under What Circumstances Should the Chi-Square Statistic Not Be Used?​

Under What Circumstances Should the Chi-Square Statistic Not Be Used?