Construct a frequency distribution for the data. A random sample of 30 high school students is selected. Each student is asked how much time he or she spent on the Internet during the previous week. The following times (in hours) are obtained: 14 22 16 19 16 14 16 15 13 19 17 15 15 14 17 16 13 13 18 15 13 15 22 17 14 18 14 17 16 15