请教一下,下面的命令输出结果F检验的统计意义是什么?
> anova(mod.lo.inc, mod.lo)
Model 1:
loess(formula = prestige ~ income, span = 0.7, degree = 1)
Model 2:
loess(formula = prestige ~ income + education, span = 0.5,degree = 1)
Analysis of Variance Table
ENP RSS Test F Value Pr(F)
1 3.9 12006.0 1 vs 2 20.78 4.4409e-016
2 8. 0 4245.9


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