Maria asked a sample of college students about their favorite beverage. Based on what the majority said, she concluded that most college students prefer drinking carrot juice to other beverages! What statistical argument can you give for not accepting this conclusion? Heiman, Gary. Behavioral Sciences STAT (New, Engaging Titles from 4LTR Press) (p. 18). Cengage Learning. Kindle Edition.

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality.potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english