Xµ=∑X/N Yµ=∑Y/N = Yµ)= ∑(x-xµ)= ∑(Y-Yµ)= ∑(x-xµ)²= ∑(Y-Yµ)² ∑((x-xµ)(Y- = 3885.26/55 = 0.06 = 0.24 2527.17 190168.03 3303.729 = 70.64 = 388.50 Corr (x, y) = 3303.729/21922.31 = 0.150 b) Calculation of regression coefficient with the variables: Testing Y on X
Xµ=∑X/N 3885.26/55 = 70.64 ∑(x-xµ)= = 0.06 Yµ=∑Y/N = 388.50 ∑(Y-Yµ)= = 0.24 ∑(x-xµ)²= = 2527.17 ∑(Y-Yµ)² = 190168.03 ∑((x-xµ)(Y- Yµ)= 3303.729 Corr (x, y) = 3303.729/21922.31 = 0.150 b) Calculation of regression coefficient with the variables: Testing Y on X