急求帮助,[img]file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\563929834\QQ\WinTemp\RichOle\CN61[770~C`(SR}Z_L$623X.jpg[/img][img]file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\563929834\QQ\WinTemp\RichOle\CN61[770~C`(SR}Z_L$623X.jpg[/img]做二次曲线回归分析,得到的回归结果如下:R^2=0.561,F=5.115,显著水平=0.037,这样可以说回归效果显著吗?