This tool is used to test the null hypothesis that there is no difference between two population means against either one-sided or two-sided alternative hypotheses.
此工具用于检验两个总体平均值之间不存在差异的空值假设，而不是单方或双方的其他假设。
Therefore, this paper proposes by experimental analysis that photons have the tension, similarly to water, and proposes a new model and an alternative hypothesis on diffraction of light.
因此本文通过实验分析提出光量子具有类似于水的张力性质，提出光量子的一个新的模型，并提出另一种关于光的衍射的假设。
Therefore, this paper proposes by experimental analysis that photons have the tension, similarly to water, and proposes a new model and an alternative hypothesis on diffraction of light.
因此本文通过实验分析提出光量子具有类似于水的张力性质，提出光量子的一个新的模型，并提出另一种关于光的衍射的假设。
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