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The correction for the null hypothesis in the test of evaluator reliability

People usually use Friedman's rank test and Kendall's W test in the study of evaluator reliability test. In most books on SPSS or educational statistics the null hypothesis of the test of evaluator reliability is made as " H 0 :The evaluation results given by m evaluators are consistent". However, this null hypothesis is wrong as shown in the paper by counter examples. Moreover, we present the correct hypothesis as well as its theory basis.