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wzf · 2020年02月13日

问一道题:NO.PZ2015120204000012 [ CFA II ]

问题如下图:

选项:

A.

B.

C.

解释:

请问原假设是not significant对吧?

1 个答案

星星_品职助教 · 2020年02月14日

同学你好,

原假设是H0: 某个系数=0,而不会是是否significant

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相关问题

NO.PZ2015120204000012 In the month after the CPIENG clines, Stellar’s common stois expecteto exhibit a positive return. Viewein combination, the slope anintercept coefficients from Batten’s regression are not statistically significant the 0.05 level. C is correct. C is the correresponse, because it is a false statement. The slope anintercept are both statistically significant.可以证明Y变化量大于零,并不能说明Y大于零啊。您看我理解哪里有问题。谢谢

2021-08-19 05:32 1 · 回答

NO.PZ2015120204000012 B可以一下吗?

2021-02-02 15:14 1 · 回答

品职老师,请问这道题是不是可以这样理解。 首先,1) 确认假设H0=sample b1=0 2) 计算confinlevel: sample b1土t *Sb sample = -0.6486 土 1.96*0.2818 = (-1.2009, -0.096),因为样本很大假设服从Z分布,95%对应1.96. 3)计算t统计量=-2.301632,因为落在拒绝域,所以拒绝原假设,所以可以得出自变量对因变量显著影响。

2020-10-11 15:08 2 · 回答

A为什么是对的呢

2020-06-12 14:46 1 · 回答

In the month after the CPIENG clines, Stellar’s common stois expecteto exhibit a positive return. Viewein combination, the slope anintercept coefficients from Batten’s regression are not statistically significant the 0.05 level. C is correct. C is the correresponse, because it is a false statement. The slope anintercept are both statistically significant. Intercept为啥是significant? T值3.0275挺大的啊

2020-04-13 20:20 2 · 回答