3. Hoping to learn how to control crop damage by a certain species of beetle, a researcher plans to test two different pesticides in small plots of corn as well as a placebo. A few days after application of the chemicals, he'll check the number of beetle larvae found on each plant. The researcher wants to know whether either pesticide works and whether there is a significant difference in effectiveness between them. a. Identify the subjects.
b. Identify the factor(s) and the number of level(s) for each.
C. Identify the number of treatments.
d. Identify the response variable. e. How could you make this experiment blind or double-blind?​