没看懂B是什么意思

NO.PZ2017092702000119

问题如下：

Which of the following statements about hypothesis testing is correct?

选项：

The null hypothesis is the condition a researcher hopes to support.

The alternative hypothesis is the proposition considered true without conclusive evidence to the contrary.

The alternative hypothesis exhausts all potential parameter values not accounted for by the null hypothesis.

解释：

C is correct.

Together, the null and alternative hypotheses account for all possible values of the parameter. Any possible values of the parameter not covered by the null must be covered by the alternative hypothesis (e.g., H0: θ ≤ 5 versus Ha: θ > 5).

没看懂B是什么意思，可以翻译一下吗

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星星_品职助教 · 2021年04月18日

同学你好，

B选项的意思为我们本来认为备择假设是真的，除非我们观察到了相反的证据。

这里考察了原版书上的一句话。

The null hypothesis is a proposition that is considered true unless the sample we use to conduct the hypothesis test gives convincing evidence that the null hypothesis is false. When such evidence is present, we are led to the alternative hypothesis.

大意就是我们原本有一个认为为真的结论（认为原假设是真的），但是如果出现了一些证据表明原假设可能不正确，我们就要去建立假设和做假设检验。

所以B选项说“The alternative hypothesis is the proposition...”是不对的，应该是null

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NO.PZ2017092702000119 问题如下 Whiof the following statements about hypothesis testing is correct? A.The null hypothesis is the contion a researcher hopes to support. B.The alternative hypothesis is the proposition consiretrue without conclusive evinto the contrary. C.The alternative hypothesis exhausts all potentiparameter values not accountefor the null hypothesis. C is correct. Together, the null analternative hypotheses account for all possible values of the parameter. Any possible values of the parameter not coverethe null must coverethe alternative hypothesis (e.g., H0: θ ≤ 5 versus Hθ 5).原假设和备择假设一起了参数的所有可能值。原假设未涵盖的参数值必须由备择假设涵盖（例如，H0θ≤5 与 Haθ 5）。建立原假设和备择假设我们想证明可能错了或者说此时已经不相信的就放原假设H0，我们（因为已经有证据的支持）想要证明的就放H BC请翻译并且通俗点（着实没有get到题目想考察啥）

2024-01-20 18:20 1 · 回答

NO.PZ2017092702000119 The alternative hypothesis is the proposition consiretrue without conclusive evinto the contrary. The alternative hypothesis exhausts all potentiparameter values not accountefor the null hypothesis. C is correct. Together, the null analternative hypotheses account for all possible values of the parameter. Any possible values of the parameter not coverethe null must coverethe alternative hypothesis (e.g., H0: θ ≤ 5 versus Hθ > 5). 原假设和备择假设一起了参数的所有可能值。原假设未涵盖的参数值必须由备择假设涵盖（例如，H0θ≤5 与 Haθ>5）。建立原假设和备择假设我们想证明可能错了或者说此时已经不相信的就放原假设H0，我们（因为已经有证据的支持）想要证明的就放H但是B和C，可否准确翻译一下什么意思。我怎么觉得B是正确的？备择假设是没有明显的证据反对，被认为正确的观点。

2022-02-09 07:23 3 · 回答

The alternative hypothesis is the proposition consiretrue without conclusive evinto the contrary. The alternative hypothesis exhausts all potentiparameter values not accountefor the null hypothesis. C is correct. Together, the null analternative hypotheses account for all possible values of the parameter. Any possible values of the parameter not coverethe null must coverethe alternative hypothesis (e.g., H0: θ ≤ 5 versus Hθ > 5).看不懂答案，麻烦老师一下

2021-02-12 22:55 1 · 回答

NO.PZ2017092702000119 老师视频明明说的是“不相信啥就H零。。。。想要拒绝他就H0。。。。” 原话！现在这个H0又变成真的了。。。。。晕死。。。。 c固然正确，。。。b很牵强！！！

2021-02-06 22:15 1 · 回答

没看懂B是什么意思

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