Question

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.
which of the following is a valid conclusion?

• inferences can be made about all blood pressure patients, and the conclusion can be made that the new medication lowers blood pressure more effectively than the original medication for patients taking blood pressure medication.
• inferences can be made about all blood pressure patients, but the conclusion cannot be made that the new medication lowers blood pressure more effectively than the original medication for patients taking blood pressure medication.
• inferences cannot be made about all blood pressure patients, and the conclusion can be made that the new medication lowers blood pressure more effectively than the original medication for patients taking blood pressure medication.
• inferences cannot be made about all blood pressure

Explanation:

Answer:

Inferences cannot be made about all blood pressure patients, and the conclusion can be made that the new medication lowers blood pressure more effectively than the original medication for patients taking blood pressure medication.