The Football Coach at a University Randomly Selected Ten Players $$\begin{array} { r r r r r } 11.8 & 6.9 & 14.3 & 13.7 & 9.0 \\7.0 & 7.6 & 12.0 & 13.8 & 9.6\end{array}$$

Multiple Choice

The football coach at a university randomly selected ten players and timed how long each player took to perform a certain drill.The times (in minutes) were: $$\begin{array} { r r r r r } 11.8 & 6.9 & 14.3 & 13.7 & 9.0 \\7.0 & 7.6 & 12.0 & 13.8 & 9.6\end{array}$$ Determine a 95% confidence interval for the mean time for all players.

A) (12.57,12.67)
B) (8.57,12.57)
C) (8.57,12.67)
D) (8.47,12.67)
E) (8.47,12.57)