Sorting through unsolicited e-mail and spam affects the productivity of office w

Question

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 data in the Microsoft Excel Online file below show a sample of time in minutes devoted to this task.

a. Fill in the frequency (to the nearest whole number), the relative frequency (2 decimals), the cumulative frequency (to the nearest whole number), and the cumulative relative frequency (2 decimals) values below class (Minutes) Frequency Relative Frequency cumulative Frequency cumulative Relative Frequency 1-5 6-10 11-15 16-20 21-25 26-30 31-35 (Total)

Explanation / Answer

Percentage of workers spend 5 minutes or less on unsolicited email and spam = 12x100/20 = 60%

Percentage of workers spend more than 10 minutes a day on this task = 15x100/20 = 75%

Class Frequency 1-5 12 6-10 3 11-15 2 16-20 1 21-25 1 26-30 0 31-35 1

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