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小枕头 · 2018年05月30日

问一道题:NO.PZ201512020300000303 第3小题 [ CFA II ]

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请问考试的时候会给单尾的临界值吗?还有我想知道单尾检验也是图形两边是两片拒绝域 还是拒绝域都在右边?

问题如下图:

选项:

A.

B.

C.

解释:

1 个答案
已采纳答案

ally92722 · 2018年05月31日

单尾拒绝域只在一边 例如95% confidences 一个尾巴上的阴影为5%. 另一个尾巴上没有阴影y

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NO.PZ201512020300000303 问题如下 3.The most appropriate null hypothesis anthe most appropriate conclusion regarng Hansen’s belief about the magnitu of the initireturn relative to thof the pre-offer priaustment (reflectethe coefficient bj) are: Null HypothesisConclusion about bj(0.05 Level of Significance) A.H0: bj=0.5RejeH0 B.H0: bj≥0.5Fail to rejeH0 C.H0: bj≥0.5RejeH0 C is correct.To test Hansen’s belief about the rection anmagnitu of the initireturn, the test shoula one-tailetest. The alternative hypothesis is H1: 0.5b_j 0.5bj​ 0.5, anthe null hypothesis is H0: bj≥0.5b_j\geq0.5bj​≥0.5. The corretest statistic is: t = (0.435-0.50)/0.0202 = -3.22, anthe criticvalue of the t-statistic for a one-tailetest the 0.05 level is -1.645. The test statistic is significant, anthe null hypothesis crejectethe 0.05 level of significance. 我计算的Sbj=1/(1725^0.5)=0.024077

2024-07-09 11:14 1 · 回答

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2024-01-31 16:01 1 · 回答

NO.PZ201512020300000303 问题如下 3.The most appropriate null hypothesis anthe most appropriate conclusion regarng Hansen’s belief about the magnitu of the initireturn relative to thof the pre-offer priaustment (reflectethe coefficient bj) are: Null HypothesisConclusion about bj(0.05 Level of Significance) A.H0: bj=0.5RejeH0 B.H0: bj≥0.5Fail to rejeH0 C.H0: bj≥0.5RejeH0 C is correct.To test Hansen’s belief about the rection anmagnitu of the initireturn, the test shoula one-tailetest. The alternative hypothesis is H1: 0.5b_j 0.5bj​ 0.5, anthe null hypothesis is H0: bj≥0.5b_j\geq0.5bj​≥0.5. The corretest statistic is: t = (0.435-0.50)/0.0202 = -3.22, anthe criticvalue of the t-statistic for a one-tailetest the 0.05 level is -1.645. The test statistic is significant, anthe null hypothesis crejectethe 0.05 level of significance. 总是把h0和ha的设定有点搞混,不清楚这道题为什么要设定h0为bj大于等于0.5,结论是这样得出来的

2023-04-27 00:12 2 · 回答

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2023-01-23 21:09 2 · 回答

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2021-11-11 05:26 2 · 回答