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. O This is an experiment since the investigators determining which discussion sections received the chocolate and which did not. O This is an experiment since the students were offered the chocolate before the evaluations. O This is an observational study since all of the students received the chocolate. O This is an observational study since the students didn't have to take the candy.
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. O This is an experiment since the investigators determining which discussion sections received the chocolate and which did not. O This is an experiment since the students were offered the chocolate before the evaluations. O This is an observational study since all of the students received the chocolate. O This is an observational study since the students didn't have to take the candy.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The authors of the paper "Fudging the Numbers: Distributing Chocolate Influences Student Evaluations of an Undergraduate Course"t 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.
O This is an experiment since the investigators determining which discussion sections received the chocolate and which did not.
O This is an experiment since the students were offered the chocolate before the evaluations.
This is an observational study since all of the students received the chocolate.
This is an observational study since the students didn't have to take the candy.
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