2 In an experiment to determine the factors affecting tensile strength in steel plates, the tensile strength (in kg/mmz), the manganese content (in parts per thousand), and the thickness (in mm) were measured for a sample of 20 plates. The following MINITAB output presents the results oftting the model Tensile strength = [30 + 31 Manganese + 32 Thickness. Part20f3 The regression equation is me Strength = 26.641 + 3.3201 Manganese 0.4249 Thickness points Predictor Coef StDev T P \"we\" Constant 26.641 2.72340 9.78 0.000 Manganese 3.3201 0.33198 10.00 0.000 wow Thickness 0.4249 0.12606 3.37 0.004 mm S = 0.8228 RSq = 86.2% RSq(adJ) = 84.6% A\" Analysis of Variance Print Wkwm Source DF 58 MS F P Regression 2 72.01 36.005 53.19 0.000 Residuai Error 17 11.508 0.6769 Totai 19 83.517 If two specimens have the same thickness, and one contains 13 ppt more manganese. by how much would you predict their strengths to differ? kglmm2