estion Completion Status: QUESTION / The following L16 linear graph is being used to design the experimentation. 15 8 If I have two factors in which it is very difficult to change their levels during experimentation I should place them in which two columns? O 2,5 4.6 1 1.2 O 1.3 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search O 9 ASUS VivoBook est 10 0 f1 & @ # 2 3 4 5 6 Q W E R T Y