Question 3 - (3 points) Figure 2 shows the result of DOE analysis. Write at least six comments on picture below: Interaction plot for filtration rate Data means 4 15 10 15 2 30 100 Temperature 24 35 75 Temperature 50 100 Pressure 10 15 75 Pressure 50 100 Concentration of formaldehyde 75 Concentration of formaldehyde 50 Stir rate Question 4 (3 points) As discussed in the class, correlation can often be confused with causation. Provide an example and explain the confusion