More Practice with Experimental Design and Ethics

Complete these exercises and check your answers.

Exercise

88. An advertisement for Acme Investments displays the two graphs in Figure 1.14 to show the value of Acme's product in comparison with the Other Guy's product. Describe the potentially misleading visual effect of these comparison graphs. How can this be corrected?
Figure 1.14 As the graphs show, Acme consistently outperforms the Other Guys!

 
89. The graph in Figure 1.15 shows the number of complaints for six different airlines as reported to the US Department of Transportation in February 2013. Alaska, Pinnacle, and Airtran Airlines have far fewer complaints reported than American, Delta, and United. Can we conclude that American, Delta, and United are the worst airline carriers since they have the most complaints?
Figure 1.15


Source: Rice University, https://openstax.org/books/introductory-statistics/pages/1-homework
Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 License.