有关计算结果及其它数据如下表: hN R 2 h W.X yxh 427 043753672001083400:500010232120649345710.89409567 2 297 0.3043 251600 033285783771431.11408631221.5712329490522692.429 252 0.2582 208000 61034333845.83331.222857121470.66771846.96787713:67 X y= R S S N=976 8268002393607:87.806-1065754143051 试对总体总和Y(该地区实际耕地面积总和)用各种手法进行 估计有关计算结果及其它数据如下表: h Nh Wh Xh nh h y h x ˆ h h h y R x = 2 Syh 2 Sxh Syxh N = 976 826800 X = 23 n = 933.6087 y = 847.7826 x = ˆ 1.101236 y R x = = 2 57745 Sy = 2 41146 Sx = 43051 Syx = 1 2 3 427 297 252 0.4375 0.3043 0.2582 367200 251600 208000 10 7 6 873.4000 933.2857 1034.3333 856.0000 837.7143 845.8333 1.020327 1.114086 1.222857 42064.933 31221.571 121470.667 45710.889 23294.905 71846.967 42055.667 22692.429 87713.867 试对总体总和 (该地区实际耕地面积总和)用各种手法进行 估计. Y