In a Study of 265 Subjects,the Average Score on the Examination

Multiple Choice

In a study of 265 subjects,the average score on the examination was 63.8 and s = 3.08.What is a 95 percent confidence for ??

A) $\left[ \begin{array} { l l } 63.59 & 64.01\end{array} \right]$
B) $\left[ \begin{array} { l l } 57.76 & 69.84\end{array} \right]$
C) $\left[ \begin{array} { l l } 63.43 & 64.17\end{array} \right]$
D) $\left[ \begin{array} { l l } 63.56 & 64.04\end{array} \right]$