回归方程的显著判断，请指教？？？？？

如回归分析表，虽然线性回归的方差分析是显著的，拟合也和年强 ，但系数的显著性判断，都大于0.05请问还有意义吗？
The regression equation is
Y = - 82.7 + 3.10 X1 + 0.369 X2


Predictor Coef SE Coef T P
Constant -82.65 93.70 -0.88 0.395
X1 3.098 1.993 1.55 0.146
X2 0.3693 0.2148 1.72 0.111


S = 4.75590 R-Sq = 89.8% R-Sq(adj) = 88.1%


Analysis of Variance

Source DF SS MS F P
Regression 2 2400.6 1200.3 53.07 0.000
Residual Error 12 271.4 22.6
Total 14 2672.0


Source DF Seq SS
X1 1 2333.7
X2 1 66.9


Unusual Observations

Obs X1 Y Fit SE Fit Residual St Resid
4 6.2 125.00 115.30 2.12 9.70 2.28R

R denotes an observation with a large standardized residual.
是单次15中不同组合的试验预测？？