Question 576093
I. The population is the set of all heart attack victims.


II. The sample is the set of patients undergoing the study.


III. This is an experiment because the sample is broken up into two groups where one group is given treatment of the drug being tested (while the other is given the status quo treatment, or control treatment).


IV. The variables are the survival rates and the side effects.


V. Survival rates are measure in years, so this is a ratio level measurement. Side effects are a nominal measurement since they list out symptoms and such (in verbal detail).