问题如下:
Based on Exhibit 2 and Vasileva’s prediction of the crude oil return for month 37, the estimate of Amtex share return for month 37 is closest to:
选项:
A.–0.0024
0.0071.
0.0119
解释:
B is correct. The predicted value of the dependent variable, Amtex share return, given the value of the independent variable, crude oil return, of –0.01, is calculated as:
=0.0071
请问这道题最后说the variance of the prediction error to be 0.0022,这个有用吗?