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zhaohan · 2023年09月23日

A选项为什么不对?

NO.PZ2018062016000131

问题如下:

In the steps of hypothesis testing, which of the following descriptions on the statistically significant result is most accurate?

选项:

A.

When we test the null hypothesis, the absolute value of the test statistic is less extreme than the absolute value of the critical value

B.

When we accept the null hypothesis, we can get a statistically significant result.

C.

When we reject the null hypothesis, the result is statistically significant.

解释:

C is correct.

当计算出来的检验统计量的绝对值大于临界值(critical value)的绝对值时,拒绝原假设,并简称为statistically significant

A选项的意思不就是当测试值小于关键值的时候,我们要接受原假设吗?A选项为什么不对呢?

1 个答案

星星_品职助教 · 2023年09月23日

同学你好,

本题问的是哪个选项描述的是“statistically significant result”,也就是哪个选项描述的是拒绝原假设。

由于A选项描述的是不能拒绝原假设,所以不能选。

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