4.69 ● The article “Comparing the Costs of Major Hotel Franchises” (Real Estate Review [1992]: 46–51) gave the following data on franchise cost as a percentage of total room revenue for chains of three different types:

Budget 2.7 2.8 3.8 3.8 4.0 4.1 5.5 5.9 6.7 7.0 7.2 7.2 7.5 7.5 7.7 7.9 7.9 8.1 8.2 8.5 Midrange 1.5 4.0 6.6 6.7 7.0 7.2 7.2 7.4 7.8 8.0 8.1 8.3 8.6 9.0 First-class 1.8 5.8 6.0 6.6 6.6 6.6 7.1 7.2 7.5 7.6 7.6 7.8 7.8 8.2 9.6 Construct a boxplot for each type of hotel, and comment on interesting features, similarities, and differences.