you would like to investigate whether smokers...
you would like to investigate whether smokers are more likely than nonsmokers to get lung cancer. you take the students in your class, select half at random and tell them to smoke a pack of cigarettes each day, and you tell the other half not to ever smoke. fifty years from now, you will analyze whether more smokers than nonsmokers got lung cancer. is this an experiment or an observational study?\nexperiment\nobservational study
Answer
# Brief Explanations:
In an experiment, the researcher manipulates the independent variable (here, smoking status). The researcher is assigning students to smoke or not smoke. In an observational study, the researcher only observes existing behaviors without intervention. Here, there is intervention in the form of assigning smoking - non - smoking status.
# Answer:
Experiment