Zagat restaurant guides publish ratings of restaurants for many large cities around the world (see www.zagat.com). The review for each restaurant gives a verbal summary as well as a 0-to-30-point rating of the quality of food, decor, service, and the cost of a dinner with one drink and tip. Figure 3.19 shows side-by-side box plots of the cost for Italian restaurants in Boston, London, and New York (Little Italy and Greenwich Village neighborhoods).

Summarize what you learn from these plots.