For two parameters, a confidence interval for 1 2 , based on single-sample estimate i , and interval Show that it

For two parameters, a confidence interval for θ₁ − θ₂, based on single-sample estimate θ̂_i, and interval 

Show that it has the general form above of an interval for θ₁ − θ₂.

|(. , V(. - 4,)* + (4. - ,), , + V(u, ,) + (. 4,)'). 4(1-4,) ,(1 2) (1 ,) L(1 - L,) SL > Su ,