A car engineer aims to conduct the experiment to investigate the impacts of several battery factors in an electrical vehicle on the traveling distance (denoted by Y) with a full charge. The engineer wants to reduce the amount of experiment cost for this experiment through the fractional factorial design. The factors of interest are operating temperature (A), battery capacity (B), the battery material (C) and battery density (D) and the data are shown below in Table Q2. (a) (b) (c) A 30 40 30 40 30 40 30 40 B 10k 10k 20k 20k 10k 10k 20k 20k Table Q2 90 100 100 90 100 90 90 100 D 82.8 83.5 84.7 85 84.1 84.5 83.9 82.8 Y (km) 155 215 155 175 185 170 190 206 Identify the specific experiment design used in this experiment and state advantages and disadvantages of such design. (12 marks) Identify and verify the generators for a chosen design in Question 2(a). List down all the aliases for a chosen design in Question 2(a). (6 marks) (7 marks)