Concept explainers
The authors of the paper “Fudging the Numbers: Distributing Chocolate Influences Student Evaluations of an Undergraduate Course” (Teaching in Psychology [2007]: 245–247) carried out a study to see if
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.
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Chapter 2 Solutions
Introduction To Statistics And Data Analysis
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