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Danielle靓靓 · 2018年10月28日

问一道题:NO.PZ2018062016000147 [ CFA I ]

问题如下图:

选项:

A.

B.

C.

提问:答案的解释不太能看懂,老师可否解释一下?谢谢您 解释:

3 个答案
已采纳答案

菲菲_品职助教 · 2018年10月29日

同学你好,答案的意思是,因为我们想要研究衍生品的usage和size之间的关系,虽然说衡量size的指标revenue是一个ratio scale,但是衍生品的usage里面,一共只有三种风险,这个选择的范围只能算是一种ordinary scale,衡量这个scale的检验就不能用参数检验了,只能用非参数检验来衡量。所以选择B。

星星_品职助教 · 2022年02月13日

@王秋宇

1)题目分析的是公司规模和衍生品使用之间的关系。其中衍生品是一个分类的数据(分成三类)。这是一个ordinal scale的数据。适用于nonparametric test。如下图截图,ordinal scale数据是nonparametric四种适用范围之一。

答案解析的意思可参考此前助教的回复。

2)explosure 应为 exposure,risk exposure是风险种类的意思。

王秋宇 · 2022年02月12日

​问题现在有两个。一,这道题目我理解是,这个人想要研究一下,钢铁公司规模和金融衍生品使用量之间的关系。这个我理解是可以用参数测试的啊? 二,explosure这个词我查词都没查到,是个什么鬼?答案是b,那么题目应该不是我理解的意思,题目究竟想问什么?答案究竟想表达什么

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NO.PZ2018062016000147 如题

2022-02-13 22:02 1 · 回答

a nonparametric test only. both parametric annonparametric tests. B is correct. Although the revenue is measureon a ratio scale, scope of risk explosure is measureon only ornary scale. Besis, the sample size is small. Oliver thus employenonparametric statistito explore the relationship between rivatives usage ansize.老师好,这道题不是很理解,能否详细下?

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