Please assist

The following is apartial computer output of a multiple regression analysis of a data set containing 20 sets of observations on the dependent variable

The regression equation is SALEPRIC = 1470 + 0.814 LANDVAL = 0.820 IMPROVAL + 13.5 AREA Predictor Coef SE Coef T P Constant 1470 5746 0.26 0.801 LANDVAL 0.8145 0.5122 1.59 0.131 IMPROVAL 0.8204 0.2112 3.88 0.0001 AREA 13.529 6.586 2.05 0.057 S = 79190.48 R-Sq = 89.7% R-Sq(adj) = 87.8% Analysis of Variance Source DF SS MS Regression 3 8779676741 2926558914 Residual Error 16 1003491259 62718204 Total 19 9783168000

For the problem above, we want to carry the significance test about the coefficient of LANDVAL, what is the t-value for this test, and is it significant?