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null hypothesis
英 [ˈnʌl haɪpɒθəsɪs]

  • n. (统计学)零假设(又称原假设、虚无假设):统计假设检验中的默认假设,需经检验后接受或拒绝;通常表示观察到的差异仅由随机因素而非系统性因素引起,即不存在真实效应、组间差异或变量间关系;若检验结果不支持该假设,则拒绝它并转而支持备择假设。

网络释义专业释义英英释义

短语

null hypothesis [电子] 零假设 ; 虚无假设 ; [数] 无效假设 ; [统计] 虚假设

the null hypothesis 零假设 ; 虚无假设 ; 原假设

null hypothesis testing 虚假设检定

NH Null Hypothesis 虚无假设 ; 零假设

non-null hypothesis [统计] 非虚无假设

the global null hypothesis 全球零假设 ; 全球空值假设

equivalent null hypothesis [统计] 等价零假设

under the global null hypothesis 全球零假设下

functional null hypothesis 功能性解消假说

false null hypothesis 不成立的原假设

 更多收起网络短语
  • 零假设 - 引用次数:1

    参考来源 - 带有误差变量的偏度和峰度正态性检验 The Testing for Normality Based on PP
    虚假设
    无效假设
    解消假设
  • 虚假设
    原假设
    零假说
  • 无效假设
  • 零假设
  • 解消假设
    虚无假设
  • 无效假说
    零假说

·2,447,543篇论文数据,部分数据来源于NoteExpress

Null hypothesis

  • abstract: In statistical inference of observed data of a scientific experiment, the null hypothesis refers to a general or default position: that there is no relationship between two measured phenomena, or that a potential medical treatment has no effect. Rejecting or disproving the null hypothesis – and thus concluding that there are grounds for believing that there is a relationship between two phenomena or that a potential treatment has a measurable effect – is a central task in the modern practice of science, and gives a precise sense in which a claim is capable of being proven false.

以上来源于: WordNet

 柯林斯英汉双解大词典 

null hypothesis

  • 1. 

    N the residual hypothesis if the alternative hypothesis tested against it fails to achieve a predetermined significance level 无效假说 [statistics] → compare hypothesis testing, alternative hypothesis

双语例句权威例句

  • This test-the-null-hypothesis-first logic applies at multiple stages in the analysis of poll data.

    这个“先检验虚假设”逻辑在民意测验数据分析中的多个阶段都适用。

    youdao

  • Otherwise you must retain the null hypothesis.

    否则您就必须使用该无效假设。

    youdao

  • Most statisticians would not argue if you decided to reject the null hypothesis that the results can be accounted for in terms of random sampling variability from the null distribution.

    如果您决定 排除虚假设— 结果可以按照零分布的随机抽样可变性获得,那么大多数统计师都不会有争议。

    youdao

更多双语例句
  • Translation, if one were to start with a pre-trial null hypothesis probability of 50% (reflecting equipoise, an ethical prerequisite for randomizing patients), the post-trial null hypothesis probability would still be 9%, which is not sufficient to change my practice.

    FORBES: Chelation For Heart Disease: Not What You Have Read

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