经研究发现，学生用于购买书籍及课外读物的支出与本人受教育年限和其家庭收入水平有关，对18名学生进行调查统计的回归分析结果如下： Dependent Variable: CONS Method: Least Squares Date: 06/04/14 Time: 09:51 Sample: 1 18 Included observations: 18 Variable Coefficient Std. Error t-Statistic Prob. C A 30.32236 -0.032173 0.9748 EDUC 104.3146 B 16.27592 0.0000 INC 0.402190 0.116348 C 0.0035 R-squared 0.979726 Mean dependent var 755.1500 Adjusted R-squared 0.977023 S.D. dependent var 258.6859 S.E. of regression 39.21162 Akaike info criterion 10.32684 Sum squared resid 23063.27 Schwarz criterion 10.47523 Log likelihood -89.94152 Hannan-Quinn criter. 10.34730 F-statistic 42.6394 Durbin-Watson stat 2.561395 Prob(F-statistic) 0.000000 写出A= B= C= 的值。 写出上题中的样本回归函数 ；0.05的显著水平下，写出方程显著性检验的判断依据及结果
经研究发现，学生用于购买书籍及课外读物的支出与本人受教育年限和其家庭收入水平有关，对18名学生进行调查统计的回归分析结果如下： Dependent Variable: CONS Method: Least Squares Date: 06/04/14 Time: 09:51 Sample: 1 18 Included observations: 18 Variable Coefficient Std. Error t-Statistic Prob. C A 30.32236 -0.032173 0.9748 EDUC 104.3146 B 16.27592 0.0000 INC 0.402190 0.116348 C 0.0035 R-squared 0.979726 Mean dependent var 755.1500 Adjusted R-squared 0.977023 S.D. dependent var 258.6859 S.E. of regression 39.21162 Akaike info criterion 10.32684 Sum squared resid 23063.27 Schwarz criterion 10.47523 Log likelihood -89.94152 Hannan-Quinn criter. 10.34730 F-statistic 42.6394 Durbin-Watson stat 2.561395 Prob(F-statistic) 0.000000 写出A= B= C= 的值。 写出上题中的样本回归函数 ；0.05的显著水平下，写出方程显著性检验的判断依据及结果