Assignment 2: By studying a chemical process, expects the yield to be affected by the levels of two factors, X1 Factor 1 Yield and X2 Observation Number 1 2 3 4 5 6 7 8 9 10 11 12 41.9 43.4 43.9 44.5 47.3 47.5 47.9 50.2 52.8 53.2 56.7 57.0 63.5 65.3 71.1 77.0 77.8 Observations recorded for various levels of the two factors are shown in the following table. Interaction between X1 and x2 is not expected based knowledge of similar processes. Units of the factor levels and the yield ignored for the analysis. Determine resulting least-squares equation of Multiple regression using matrix approach. Factor 2 (x2) ) 29.1 29.3 29.5 29.7 29.9 30.3 30.5 30.7 30.8 30.9 31.5 31.7 31.9 32.0 32.1 32.5 32.9 251.3 251.3 248.3 267.5 273.0 276.5 270.3 274.9 285.0 290.0 297.0 302.5 304.5 309.3 321.7 330.7 349.0 on 13 14 15 are 16 17 . 34