Suppose that the researchers decide to redesign the study to see if water quality also has an effect on the concentration of pesticides in urine. They now split the subjects that were in the previous levels randomly. Half of the subjects will drink a specific tap water, while the other half will drink distilled water. 10. What are the factor/s in the experiment now: 1. One: The duration of the organic diet 2. One: The water quality 3. One: The concentration of pesticides in urine 4. Two: The water quality and the concentration of pesticides in urine 5. Two: The duration of the organic diet and the water quality 6. Two: The duration of the organic diet and the concentration of pesticides in urine 11. How many levels would the new study have? a. 3 b. 5 C. 6 d. 9 e. 18 12. Following the ethical principles for studies involving humans: a. The researchers don't need to appoint an Institutional Review Board because organic diets are safe. b. The researches can publish personal information if the participants don't complain. c. The participants need to give informed consent in writing before the study begins. d. The researchers designed the study trying to reduce the amount of people participating. This study source was downloaded by 100000852235375 from CourseHero.com on 01-19-2023 10:23:54 GMT -06:00 https://www.coursehero.com/file/37763254/quiz1pdf/