第一问D为什么错？

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NO.PZ202309160100012701

问题如下：

The bank analyst wants to test the null hypothesis that the beta of the portfolio is 1.3 at a 5% significance level. According to the regression results, the analyst would:

选项：

Reject the null hypothesis because the t-statistic is greater than 1.96

Fail to reject the null hypothesis because the t-statistic is greater than 1.96

Reject the null hypothesis because the p-value is greater than 5%

Fail to reject the null hypothesis because the p-value is greater than 5%

解释：

pvalue小于0.05拒绝原假设，所以显著，不对么？

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一凡007 · 2024年07月25日

把D改成reject原假设就对了吧？老师

1 个答案

已采纳答案

pzqa39 · 2024年07月26日

嗨，爱思考的PZer你好：

如果改成Reject 然后后面改成smaller就对了。

D选项本身表述没错啊，但是这道题的p值是小于5%的，在前面的题干里面有，所以说因为p值大于5%就错了。

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NO.PZ202309160100012701问题如下 Thebank analyst wants to test the null hypothesis ththe beta of the portfoliois 1.3 a 5% significanlevel. Accorng to the regression results, theanalyst woul A.Rejethe null hypothesisbecause the t-statistic is greater th1.96B.Fail to rejethe nullhypothesis because the t-statistic is greater th1.96C.Rejethe null hypothesisbecause the p-value is greater th5% Fail to rejethe nullhypothesis because the p-value is greater th5% 404.2525是原假设b1=1.3的检验统计量？（1.2054-1.3）/0.00298=-31.74，不是404，哪里错了吗？

2024-11-10 22:52 4 · 回答

NO.PZ202309160100012701问题如下 Thebank analyst wants to test the null hypothesis ththe beta of the portfoliois 1.3 a 5% significanlevel. Accorng to the regression results, theanalyst woul A.Rejethe null hypothesisbecause the t-statistic is greater th1.96B.Fail to rejethe nullhypothesis because the t-statistic is greater th1.96C.Rejethe null hypothesisbecause the p-value is greater th5% Fail to rejethe nullhypothesis because the p-value is greater th5% 老师好，1、这道题哪里能看出是标准正态分布而不是t分布？怎么看出来的小于1.96？查表的话，怎么查啊？是查标准正态分布表吗？2、为什么不选C呢？

2024-06-23 21:57 3 · 回答

第一问D为什么错？

1 个答案

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