根据 3个自变量进行回归,得到下面的回归结果(α=0.05)。根据上表可知( ) Coefficients 标准误差 t Stat P-value Intercept 7589.1025 2445.0213 3.1039 0.00457 X Variable 1 -117.8861 31.8974 -3.6958 0.00103 X Variable 2 80.6107 14.7676 5.4586 0.00001 X Variable 3 0.5012 0.1259 3.9814 0.00049