Sorting through unsolicited e-mail and spam affects the productivity of office workers. An InsightExpress survey monitored office workers to determine the unproductive time per day devoted to unsolicited e-mail and spam (USA Today, November 13, 2003). The fol- lowing data show a sample of time in minutes devoted to this task.
2 4 8 4
8 1 2 32
12 1 5 7
5 5 3 4
24 19 4 14
Summarize the data by constructing the following:
a. A frequency distribution (classes 1–5, 6–10, 11–15, 16–20, and so on)
b. A relative frequency distribution
c. A cumulative frequency distribution
d. A cumulative relative frequency distribution
e. An ogive
f. What percentage of office workers spend 5 minutes or less on unsolicited e-mail and spam? What percentage of office workers spend more than 10 minutes a day on this task?
Answers: 1
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