b) As a Quality Engineer in a drill press production machine factory in Shah Alam, you are tasked to study the quality of the thrust force (N) of the assembled drill press. Based on previous study, the cutting speed and the feed rate of the material are the most important factors. Four feed rates are being selected and uses a high and low cutting speed chosen to represent the extreme operating conditions. Table Q4(b) shows the result of Thrust Force (N) for Cutting Speed (m/min) vs Feed Rate (mm/rev). Analyse the data to determine the significance of each factor for level a = 0.05. Table Q4(b) Result of Thrust Force (N) for Cutting Speed (m/min) vs Feed Rate (mm/rev) Feed Rate (mm/rev) Cutting speed (m/min) 125 0.015 0.03 0.045 0.06 2.70 2.78 2.83 2.86 2.45 2.49 2.85 2.80 2.60 2.72 2.86 2.87 2.75 2.86 2.94 2.88 200