A company randomly selected nine office employees and secretly monitored their computers for one month. The times (in hours) spent by these employees using their computers for non-job-related activities (playing games, personal communications, etc.) during this month are given below.
7
6
9
8
11
4
14
1
6
Assuming that such times for all employees are normally distributed, make a 95% confidence interval for the corresponding population mean for all employees of this company.
Round your answers to two decimal places.