The researcher is interested in finding out the relationship between gang leader's willingness to help in a campaign to stop gang violence and the size of each leader's gang. The following data are from 5 LA gang leaders.

Gang Gang Willingness Cross-Product leader size (X) (Y) My = 84; SDx = 60.99 1 24 10 My = 6; SDy = 3.16 2 106 E( X -M x)(Y -M,) =-688 4 SSx = E(X -Mx) =14880 3 42 6 SS, = E(Y -MY)' =40 4 70 8 LE (C 5 178 2OZy = (+. 89 Zx O Zy = (-688 ZX O ZY = (-.67) (Zx) OZY -. 89 ZxOY = 4.2+ -. 05X OY = -.05 + 10.2X OY = 4.2+ -. 89X OY = 10.2 + -. 05X OY = 10.2 + .05X