FrankSun · 2022年01月29日

为什么是除以34而不是36?

1. CFA II
2. Quantitative

* 问题详情，请 查看题干

NO.PZ202109130200004402

问题如下：

Based on Exhibit 1, the standard error of the estimate is closest to:

选项：

A.0.04456 B.0.04585 C.0.05018

解释：

B is correct. The standard error of the estimate for a linear regression model with one independent variable is calculated as the square root of the mean square error:

${s_e}=\sqrt{\frac{{0.071475}}{{34}}}=0.04585$

为什么是除以34而不是36?