When Testing the Null Hypothesis That Two Regression Slopes Are $( - 1.96,1.96 )$

Short Answer

When testing the null hypothesis that two regression slopes are zero simultaneously, then you cannot reject the null hypothesis at the 5% level, if the ellipse contains the point a. $( - 1.96,1.96 )$ .
b. $| ( 0,1.96 ) |$ .
c. $( 0,0 )$ .
d. $\left( 1.96 ^ { 2 } , 1.96 ^ { 2 } \right)$ .