ructured Tutorial ST Sorting through unsolicited e-mail and spam affects the pro

Question

ructured Tutorial ST Sorting through unsolicited e-mail and spam affects the productivity of office workers. An InsightExpress survey monitored office workers to determine the 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. Summarize the data by constructing the following items ive tim 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 values below. Class (Minutes) Frequency Relative Frequency Cumulative Frequency Cumulative Relative Frequency 1-5 6-10 1 11-15 16-20 21-25 26-30 31-35 b. Use the graph below of these data to answer the following questions. 0

Explanation / Answer

Class Frequency Relative Frequency Cumulative Frequency Cumulative Relative Frequency 1 to 5 12 0.6 12 0.6 6 to 10 3 0.15 15 0.75 11 to 15 2 0.1 17 0.85 16 to 20 1 0.05 18 0.9 21 to 25 1 0.05 19 0.95 26 to 30 0 0 19 0.95 31 to 35 1 0.05 20 1 Total 20 1 60 Percent of office workers spend 5 or less than 5 minutes on unsolicited e-mail and spam. 25 Percent of office workers spend more than 10 minutes on unsolicited e-mail and spam.

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