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图嗲 · 2018年03月05日

问一道题:NO.PZ201709270100000505 第5小题 [ CFA II ]

* 问题详情,请 查看题干

问题如下图:

    

选项:

A.

B.

C.

解释:


请问老师,本题选项B为啥不选呢?slope显著的等于0啊。谢谢


1 个答案

daiqiedison · 2018年03月05日

t的绝对值大于2,显著不等于0才对吧?

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NO.PZ201709270100000505 问题如下 5. Baseon the regression output in Exhibit 2, whshoulleBusse to conclu ththe Regression 3 equation is not correctly specifie A.The rbin–Watson statisti B.The t-statistic for the slope coefficient C.The t-statistifor the autocorrelations of the resi C is correct. The regression output in Exhibit 2 suggests there is sericorrelation in the resierrors. The fourth autocorrelation of the resiha value of 0.6994 ana t-statistic of 4.3111, whiis greater ththe t-statistic criticvalue of 2.02. Therefore, the null hypothesis ththe fourth autocorrelation is equto zero crejecte This incates strong ansignificant seasonautocorrelation, whimeans the Regression 3 equation is misspecifie test,这个得出的数字值小于CriticValue啊,那为什么A不对啊

2024-03-09 09:01 1 · 回答

NO.PZ201709270100000505 问题如下 5. Baseon the regression output in Exhibit 2, whshoulleBusse to conclu ththe Regression 3 equation is not correctly specifie A.The rbin–Watson statisti B.The t-statistic for the slope coefficient C.The t-statistifor the autocorrelations of the resi C is correct. The regression output in Exhibit 2 suggests there is sericorrelation in the resierrors. The fourth autocorrelation of the resiha value of 0.6994 ana t-statistic of 4.3111, whiis greater ththe t-statistic criticvalue of 2.02. Therefore, the null hypothesis ththe fourth autocorrelation is equto zero crejecte This incates strong ansignificant seasonautocorrelation, whimeans the Regression 3 equation is misspecifie 这道题B不能选的原因是因为,根据b1的t值,可以看出b1是显著不等于0的,所以按照B的意思是方程成立了。因为这个所以不选B吗

2022-12-12 12:13 1 · 回答

NO.PZ201709270100000505 The t-statistic for the slope coefficient The t-statistifor the autocorrelations of the resi C is correct. The regression output in Exhibit 2 suggests there is sericorrelation in the resierrors. The fourth autocorrelation of the resiha value of 0.6994 ana t-statistic of 4.3111, whiis greater ththe t-statistic criticvalue of 2.02. Therefore, the null hypothesis ththe fourth autocorrelation is equto zero crejecte This incates strong ansignificant seasonautocorrelation, whimeans the Regression 3 equation is misspecifie 就是对autocore elation这个检验是啥意思,t拒绝了说明了啥没明白

2022-03-31 11:57 1 · 回答

    不选A的原因是因为题干给了值,但没有给 criticvalue,无法判断A,所以才不选,对吗?

2019-05-24 12:51 3 · 回答

b哪里错了?b哪里错了?

2018-10-23 20:38 1 · 回答