Chapter 3.1, Problem 3E

The survey referenced in the previous exercise was conducted by Robert Half Technology. This company issued a press release (“Whistle—But Don’t Tweet-While You Work,” roberthalftechnology.com, October 6, 2009) that provided more detail than in the USA TODAY graph. The actual question asked was “Which of the following most closely describes your company’s policy on visiting social networking sites, such as Facebook, MySpace and Twitter, while at work?” The responses are summarized in the following table:

1. a. Explain how the survey response categories and corresponding relative frequencies were used or modified to produce the graphical display in the previous exercise.
2. b. Using the data in the table, construct a segmented bar chart. (Hint: See Example 3.5.)
3. c. What are two other types of graphical displays that would be appropriate for summarizing these data?

3.2 The graphical display on the next page is similar to one that appeared in USA TODAY (October 22, 2009). It summarizes survey responses to a question about whether visiting social networking sites is allowed at work. Which of the graph types introduced in this section is used to display the responses? (USA TODAY frequently adds artwork and text to their graphs to try to make them look more interesting.)