Question

Below we present data concerning hospital labor needs at 13 U.S. Navy Hospitals. Here: y monthly labor hours required and x = monthly occupied bed days XL x; == 26517.68, x =72900841, L = 79037513, xy = 74559098 yi = 28388.79, Li=1 Hospital X 472.92 1 566.52 2 1339.75 696.82 3 1033.15 620.25 4 1603.62 668.33 5 1611.37 1497.60 6 1613.27 1365.83 7 1854.17 1687.00 2160.55 1639.92 2305.58 2872.33 10 3503.93 3655.08 11 3671.89 2912.00 12 3741,40 3921.00 4026.52 13 3865.67

Answer 1

Σn	ΣX	ΣY	ΣXY	ΣX²	ΣY²
13	26517.68	28388.79	74559098.00	72900841.00	79037513.00

              
sample size ,   n =   13      
here, x̅ =Σx/n =   2039.8215   ,   ȳ = Σy/n =   2183.753077
              
SSxx =    Σx² - (Σx)²/n =   18809506.186      
SSxy=   Σxy - (Σx*Σy)/n =   16651032.707      
SSyy =    Σy²-(Σy)²/n =   17043405.487      

SSE=   (Sx*Sy - S²xy)/Sx = (18809506.186*17043405.487 - 16651032.707²)/18809506.186

= 2303151.9436 ~ 2303152 (answer)