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CC · 2024年05月08日

Quant Basic

  1. CFA II
  2. Quantitative

NO.PZ2018101001000023

问题如下：

Xiao Ming does the multiple regression analysis to find that how GDP 、 financial deficit(FD) and repayment of principal(REPAY) influence the total volume of national debt(DEBT) in China and gets the following model: DEBT=4.31+0.35GDP+1.00FD+0.88REPAY. Which of the following statements is most likely correct?

选项：

A.

Repayment of principal and the total volume of national debt are negatively related.

B.

When financial deficit decrease, the total volume of national debt increases.

C.

The increase of the GDP will increase the total volume of national debt.

解释：

C is correct.

考点: Interpret Regression Coefficient, Assumptions and F-test.

解析: 通过每个变量前面的斜率的正负号我们可以知道GDP、financial deficit and repayment of principal这三个变量对total volume of national debt都有正向的影响。而选项A和B的描述都说反了，所以错误，应该选择C。

麻烦老师解释下C选项？谢谢～

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1 个答案

品职助教_七七 · 2024年05月08日

嗨，努力学习的PZer你好：


根据题干给出的模型，DEBT=4.31+0.35GDP+1.00FD+0.88REPAY，可知GDP前面的系数为正。即GDP增加一个单位，DEBT会增加0.35个单位。

所以“The increase of the GDP will increase the total volume of national debt”这个描述是正确的。

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NO.PZ2018101001000023 问题如下 XiMing es the multiple regression analysis to finthhow G 、 financificit(F anrepayment of principal(REPAY) influenthe totvolume of nationbt(BT) in China angets the following mol: BT=4.31+0.35G+1.00F0.88REPAY. Whiof the following statements is most likely correct? A.Repayment of principanthe totvolume of nationare negatively relate B.When financificit crease, the totvolume of nationincreases. C.The increase of the G will increase the totvolume of nationbt. C is correct.考点: Interpret Regression Coefficient, Assumptions anF-test.解析: 通过每个变量前面的斜率的正负号我们可以知道G、financificit anrepayment of principal这三个变量对totvolume of nationbt都有正向的影响。而A和B的描述都说反了，所以错误，应该选择 每当F加1个单位，bt增加0.35个单位，所以，B正确？

2024-03-25 11:14 1 · 回答