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null hypothesis

/ˈnʌl haɪpɒθəsɪs/
  • 零假设:一种需要进行测试并接受或拒绝的统计假设,特别是指观察到的差异仅仅是由于偶然因素而不是系统性因素引起的假设。

双语例句

  1. Otherwise you must retain the null hypothesis.
    否则您就必须使用该无效假设。
  2. This means that the threshold for retaining the null hypothesis explanation was exceeded.
    这意味着超出了保持虚假设说明的阈值。
  3. In the case of this beer poll, the expected frequency under the null hypothesis is the following.
    在这个啤酒欢迎度民意测验的示例中,在虚假设条件下的期望频率如下。

网络短语

  • the null hypothesis
    零假设;虚无假设;原假设;空值假设
  • null hypothesis testing
    虚假设检定
  • NH Null Hypothesis
    虚无假设;零假设
  • non-null hypothesis
    非虚无假设
  • the global null hypothesis
    全球零假设;全球空值假设

英英释义

  • 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.