According to the definition of a small group in the book, which of the following would NOT be defined as a small group? Select one: a. five people who voluntarily serve in the Metro Civil Rights Commission to propose policy to the City Council b. six people working for the same company on various projects in different departments c. nine women who meet once a month on a Thursday in a support group for victims of wife abuse d. four old men who meet weekly in the back of a local tavern in their "club" that promotes crime watch

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.