Rita teaches environmental biology. She has 222 forms of a midterm exam, and she wonders if either form is harder than the other. She teaches approximately 200200200 total students in 444 sections of the class. She randomly assigns half of the students in each section to each form of the exam. Rita will then see if the average scores are significantly different between each form. What type of experimental design is this? a. A randomized block design
b. A one-way ANOVA design
c. A completely randomized design
d. A fractional factorial design