A large greenhouse has developed new plant. They're interested in how the plant grows under different conditions. Your task is to design an experiment to test the plant growth taking into consideration 2 brands of fertilizer (EasyGro and SuperGro), 3 levels of soil acidity (High, Moderate, and Low), and location (Indoors or Outdoors). There are 120 plants available for the experiment.
a. What are the factors? What are the levels of these factors?
b. What is the response variable?
c. Create an experimental design including a sketch of your design.