The following data is arranged in ascending order. If the median is 50, then find the value of \(n\). Also, find the mean.
 
14, 30, 33, 42, \(n -\) 4, \(n +\) 8, 68, 71, 82, 89
 
The value of \(n\) is .
 
The mean of the above data is .