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. You hypothesize that tulips exposed to more direct light will grow at a faster rate than those exposed to less light. You also wonder whether the effects of light exposure persist when you control for the amount of moisture the plants receive. You want to create a randomized comparative design that considers three factors with the following levels:

Question

luvbuggo · Answer

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)

luvbuggo · Answer

You have 1,000 seedling plants at 12 different nurseries to use in your experiment. Your experiment should run six months in length. Outline the details of your experiment.

luvbuggo · Answer

In your answer you should comment on a strategy for randomization, identify all the possible treatment groups, and discuss what might be a possible response variable. In addition, you should identify a couple confounding variables and discuss a method of controlling for one of these variables. As much as possible, use diagrams instead of words to summarize your experimental design.

likeabossssssss · Answer

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