A study of 23,000 individuals was conducted to determine if taking a regular aspirin reduces asthma attacks. Flipping
a coin determined whether each individual would be assigned to take a regular aspirin or a placebo. As a result, about
11,500 individuals were assigned to take a regular aspirin and about 11,500 were assigned to take the placebo. The
researchers summarized the results of the experiment using percentages. Of the individuals taking
the regular aspirin, 0.06% had an asthma attack, compared to 1.73% of those taking the placebo. Based on the
observed results, the study's authors concluded that taking a regular aspirin reduces asthma attacks. Complete
parts (a) through (c) below.
a. What is the aspect of this study that pertains to design?