A Psychiatrist Wishes to Determine Whether a New Medication Controls $\text { Number of Seizures }$

A psychiatrist wishes to determine whether a new medication controls seizures better than the patients' previous medications. The number of seizures is recorded on previous and new medications for a period of 1 year for each patient. The research question is focused on determining whether there are differences between the two means of the numbers of seizures between the previous and new medications. $\text { Number of Seizures }$
$\begin{array}{lll}&\text { Previous Medication }&\text { New Medication }\\\hline \text { Patient 1 } & 4 & 7 \\\text { Patient 2 } & 5 & 6 \\\text { Patient 3 } & 4 & 3 \\\text { Patient 4 } & 3 & 3 \\\text { Patient 5 } & 4 & 5\\\text { Patient 6 } & 3 & 2 \\\text { Patient 7 } & 4 & 5 \\\text { Patient 8 } & 6 & 7 \\\text { Patient 8 } & 4 & 4 \\\text { Patient 10 } & 3 & 2 \\\text { Patient 11 } & 4 & 5 \\\text { Patient 12 } & 5 & 4\\\hline \end{array}$
-In nonstatistical language, what can be concluded?

A) the new drug works better
B) the new drug works no better than the old drug
C) because the mean number of seizures was lower for the new drug, this indicates that it works better than the old drug
D) because the mean number of seizures was higher for the old drug, this indicates that the old drug works better than the new drug