Question

Which of the following is a true statement about the design of this experiment?

1) The experiment will show the effectiveness of the new cholesterol medicine.
2) The doctor will not be able to determine the effectiveness of the new medicine because not every patient tried the new medication.
3) The effectiveness of the new medicine will not be able to be determined because the doctor did not have a different random sample of patients take the original medication.
4) The effectiveness of the new cholesterol medication will not be able to be determined because the doctor did not have a different random sample of patients not take any medication.

Answer 1

The effectiveness of the new medicine will not be able to be determined because the doctor did not have a different random sample of patients take the original medication.

Step-by-step explanation:

The true statement about the design of this experiment is option 3: The effectiveness of the new medicine will not be able to be determined because the doctor did not have a different random sample of patients take the original medication.

This statement highlights the absence of a control group that received the original medication, which would enable a comparison to be made between the effects of the new medicine and the effects of the original medication.

Without a control group, it is impossible to determine whether any observed effects are due to the new medicine or other factors.