a pharmaceutical company develops a new generation of blood pressure medication that may also help with cholesterol. the research and development department advertises in the local papers and online seeking volunteers who already take blood pressure medication to participate in a study for the new medication. two hundred people volunteer, and their current blood pressure along with their cholesterol levels are measured. they are randomly assigned to two groups, one that takes the new generation of blood pressure medication and one that takes the original medication. at the end of the study, the subjects’ blood pressure and cholesterol levels are measured. the group with the new medication is found to have a significantly lower overall blood pressure than the original medication group. it was also determined that the new medication did not significantly lower cholesterol levels.
