LZ,用stata吧,你的问题很好解决,现示范如下:
设有变量X,Y,其中X取值为1(男),2(女),Y取值为绩效(比如 销售额。。。),程序如下
input x y
+----------+
| x y |
|----------|
1. | 1 1000 |
2. | 1 1003 |
3. | 1 1100 |
4. | 1 1050 |
5. | 1 1010 |
|----------|
6. | 2 1230 |
7. | 2 1280 |
8. | 2 1300 |
9. | 2 1209 |
10. | 2 1240
end
reg y x
(以下 是程序 分析结果:)
Source | SS df MS Number of obs = 10
-------------+------------------------------ F( 1, 8) = 74.73
Model | 120121.6 1 120121.6 Prob > F = 0.0000
Residual | 12860 8 1607.5 R-squared = 0.9033
-------------+------------------------------ Adj R-squared = 0.8912
Total | 132981.6 9 14775.7333 Root MSE = 40.094
------------------------------------------------------------------------------
y | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
x | 219.2 25.35744 8.64 0.000 160.7256 277.6744
_cons | 813.4 40.09364 20.29 0.000 720.9439 905.8561
------------------------------------------------------------------------------
不知按上述操作,可否解决楼的的问题?