A botanist was interested in determining the effects of scheduled watering (three days a week or daily) and the use of fertilizer (no fertilizer, traditional, and organic) in hopes of increasing the heat rating of jalapeno
peppers. The botanist conducted his own experiment, assigning each combination of watering schedule and
type of fertilizer to twelve plots that had similar soil and full sun. The average final heat rating for the plot
was then recorded at the end of the growing season.
What are the experimental units (subjects)?
How many treatments are there? What are they?
What is the response variable?