Help with statistic business question

Predictor Coef SE Coef Intercept -48.42 Exp 6.278 1.530 AB -0.1220 R 1.6639 0.420 H 0.1631 Analysis of variance Souroo or 35 nodal Error 46415 Total 43 96369 A T What would you do to improve the above model? _ '3" Remove the variable H. ' b. Remove the variables H and AB. Remove the variables H and Intercept. Remove the variable R. 5' Remove the variables R and Exp 0.610 0.000 0.592 0.000 0.711