This paper analyzes the problem appearing in the parameter significance testing based on different choice of null hypothesis and discusses the choice principles of null hypothesis.

分析了参数的显著性检验中由于零假设的不同选择所出现的问题，探讨了零假设的选择原则。

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However, when he modified his statistical methods to take into account the fact that he was testing 24 hypotheses, not one, the boundary of significance dropped dramatically.

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