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. $\left( 1.96 ^ { 2 } , 1.96 ^ { 2 } \right)$.

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The Answer of 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. $\left( 1.96 ^ { 2 } , 1.96 ^ { 2 } \right)$.

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

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