开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)｜3.2.5(安卓)APP下载

返回

kevinzhu · 2019年10月04日

问一道题：NO.PZ2015120604000131

  1. CFA I
  2. Quantitative

问题如下图：

    

选项：

A.

B.

C.

解释：


Type 2 error不是说fail to reject the H0 when it's false.

A选项里面直接用accept不是不符合要求吗？

添加评论
1 个答案

星星_品职助教 · 2019年10月04日

同学你好，

你理解的没问题，最准确的定义应该是你说的那样。由于这道题的B明显有严重错误，所以“least”的就选B了。你看的很仔细。

  • 1

    回答

  • 0

    关注

  • 295

    浏览
相关问题

NO.PZ2015120604000131问题如下 Whiof the following scriptions is the least accurate about hypothesis testing?A.A Type II error refers to fail to rejewhen the null is false.B.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.58.C.One minus the probability of a Type II error equals the power of test .B is correct.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.33​ Type II error=1-power of test，这说的就是c吧，为什么c不对

2023-11-10 09:11 1 · 回答

NO.PZ2015120604000131问题如下Whiof the following scriptions is the least accurate about hypothesis testing?A.A Type II error refers to fail to rejewhen the null is false.B.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.58.C.One minus the probability of a Type II error equals the power of test .B is correct.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.33不懂B，容易搞混。麻烦详细说下。Z统计不都是双尾吗？为啥会有单尾的。另外，为啥用1%折合单尾0.5%，而不是2%

2023-06-05 17:47 2 · 回答

NO.PZ2015120604000131问题如下Whiof the following scriptions is the least accurate about hypothesis testing?A.A Type II error refers to fail to rejewhen the null is false.B.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.58.C.One minus the probability of a Type II error equals the power of test .B is correct.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.33老师，我是用排除法选的B，看了其他同学的问题和您的回复，99% a是0.01对应双尾是2.58，那单尾就是0.005？这怎么查出来的呢

2022-12-21 08:24 2 · 回答

NO.PZ2015120604000131 问题如下 Whiof the following scriptions is the least accurate about hypothesis testing? A.A Type II error refers to fail to rejewhen the null is false. B.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.58. C.One minus the probability of a Type II error equals the power of test . B is correct.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.33 POWER OF TEST 就是test 步骤三么 计算公式那步么。怎么理解C

2022-09-14 15:57 1 · 回答

NO.PZ2015120604000131 问题如下 Whiof the following scriptions is the least accurate about hypothesis testing? A.A Type II error refers to accept the null when it is false. B.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.58. C.One minus the probability of a Type II error equals the power of test . B is correct.A one-tailetest with a significanlevel of 1% hz-criticvalues of 2.33 Type II erroru不是原假设是错的吗？A为什么不对？

2022-09-06 17:14 1 · 回答