In an interaction plot for a two factor, two level experiment, the vertical lines are drawn above "A low" and "B low".

True

False

Consider the following interaction analysis. Factor A is increased from low to high. The response increases by 40 points regardless of the level of B. This suggests a high level of interaction between A and B.

True

False

If the lines on an interaction plot are parallel this suggests no interaction between the two factors.

True

False

The most important variable in a two level two factor DOE is the one with the greatest change visible on the main effects plot when the factor is changed between two levels.

True

False

A response surface that is curved can be represented by a _____________ function

linear

digital

continuous

quadratic