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cynthia · 2021年08月29日

c选项意思不懂

  1. CFA I
  2. Quantitative

NO.PZ2018062016000123

问题如下：

Which of the following statements about one-side hypothesis test is most correct ?

选项：

A.

We reject the null only if the evidence indicates that the population parameter is smaller or larger than the critical value.

B.

Do not have Type I error.

C.

We reject the null only if the evidence indicates that the test statistic is greater than or less than the critical value.

解释：

C is correct. By definition, one-side hypothesis test also called one-tailed hypothesis test, which reject rule is reject the null only if the evidence indicates that the test statistic is greater than or less than the critical value.

这里不是说“greater than or less than”吗？这不就是不等于的意思吗？
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已采纳答案

星星_品职助教 · 2021年08月29日

同学你好，

C选项的意思是拒绝原假设的原则为|test statistics|＞|critical value|，这个描述是正确的。

如果两者都是正数，就是“greater than”，两者都是负数就是“less than”。正常不会存在一正一负的情况。

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