MyLab X E2 Math 10 - 52251 [Naik] Marwan ALdulaimi Test: Midterm Part I Time Remaining: 01:47:29 Submit Test This Question: 1 pt 6 of 27 (1 complete) This Test: 30 pts possible A group of 500 patients who suffer from hypothyroidism, a condition in which your thyroid does not produce enough of certain hormones, were asked to participate in a study to determine the effectiveness of a new medication. The patients were randomly divided into two groups, one that was given the actual medication, and one that received a placebo pill. The results of the study are below. Can we conclude that the improved symptoms were caused by the new medication? Medication Placebo Symptoms improved 205 140 Symptoms did not improve 8 A. Yes, this is a controlled experiment. Since a higher percent of patients who took the medication had improved symptoms, we can conclude causation. O B. No, even though this is a controlled experiment, there was no difference between the treatment and control groups, so we cannot conclude causation. O C. Yes, this is a controlled experiment. We can always conclude causation with a controlled experiment. O D. No, even though this is a controlled experiment, there might be a confounding factor since the placebo group had improved symptoms too