Question 13. An engineer at a semiconductor company wants to model the relationship between the device HFE (y) and three parameters: Emitter-RS (x1), Base-RS (x2), and Emitter-to-Base-RS (x3). The data are shown as below: X2 X3 y Emitter-RS Base-RS E-B-RS HFE-IM-5V 14.620 226.00 7.000 128.40 15.630 220.00 3.375 52.62 14.620 217.40 6.375 113.90 15.000 220.00 6.000 98.01 14.500 226.50 7.625 139.90 15.250 224.10 6.000 102.60 16.120 220.50 3.375 48.14 15.130 223.50 6.125 109.60 15.500 217.60 5.000 82.68b 15.130 228.50 6.625 112.60 15.500 230.20 5.750 97.52 16.120 226.50 3.750 59.06 15.130 226.60 6.125 111.80 15.630 225.60 5.375 89.09 15.380 229.70 5.875 101.00 14.380 234.00 8.875 171.90 15.500 230.00 4.000 66.80 14.250 224.30 8.000 157.10 14.500 240.50 10.870 208.40 14.620 223.70 7.375 133.40 You can read these data via: data=read. cav("https://raw. githubusercontent. com/Harrindy/StatEngine/master/Data/SemiconductorData.csy")