The Friedman test statistic is approximately chi-squared distributed with (k

Question

The Friedman test statistic is approximately chi-squared distributed with (k - 1) degrees of freedom, provided that either the number of blocks b or the number of treatments k is greater than or equal to 5.

Quizplus · Accepted Answer

The statement is true. The Friedman test is a nonparametric alternative to repeated measures ANOVA, and its test statistic follows a chi-squared distribution with (k - 1) degrees of freedom, under the condition that either b or k is greater than or equal to 5. This condition ensures that the null distribution of the test statistic is approximately chi-squared rather than some other distribution.