Reference no: EM132847835
A farm cooperative has asked you to design an experiment that measures the effects of light exposure on the growth of tulips in the Skagit Valley of Washington State. The hypothesis is that tulips exposed to more direct light will grow at a faster rate than those exposed to less light. Do the effects of light exposure persist when you control for the amount of moisture the plants receive.
I'm not sure how to design a randomized comparative design that considers three factors with the following levels:
Light Exposure (No, Yes)
Amount of Light Exposure (3 hours a day, 6 hours a day, 9 hours a day)
Amount of Moisture Exposure (1 hour a day, 3 hours a day, 5 hours a day)
There are 1,000 seedling plants at 12 different nurseries to use in the experiment. The experiment should run six months in length. Outline the details in the experiment.
Comment on a strategy for randomization, identify all the possible treatment groups, and discuss a method of controlling for one of these variables. As much as possible, use diagrams to summarize the experimental design.