Solve the question in the given attachment.

We consider the same setup as the previous question: linear regression with known standard deviation 0 =1. After collecting 48 data points, we have the following summary statistics: 48 48 48 48 Xi = -5.671304, Y; = 33.06696, > (X; - X)2 = 44.12922, >(Y; -Y)2 = 236.5728 i=1 i=1 i= 1 and 48 E(Xi - X) (Y; - Y) =88.99019. i= 1 Compute the right-hand side of the usual two-sided 95 percent confidence interval for the slope parameter. Number To clarify: The usual C.I. looks like: [ B - A, B + A ], and I am asking you to compute B + A