3 86 3-1 Measures of Center 3-2 Measures of Variation 3-3 Measures of Relative Standing and Boxplots It’s a Small World After All! DESCRIBING, EXPLORING, AND COMPARING DATA Data Set 33 “Disney World Wait Times” in Appendix B includes wait times for several popular Walt Disney World rides at both 10 AM and 5 PM. (The author collected these data using Disney’s “My Disney Experience” app.) What rides have the longest wait times? How much do wait times vary for an individual ride? How do morning wait times compare to the evening wait times? These are important questions to Disney World visitors and those that are responsible for its ongoing management and operation. A queue is a line of people or vehicles or objects waiting to be serviced, and queueing theory is a complex but important field of study with applications that we all experience on a daily basis. It should be noted that the psychology of queues (or waiting lines) is often more important than the statistics. Here are three examples: • Airline passengers arriving at Houston International Airport complained about the waiting time required to get their baggage. Increasing the number of baggage handlers greatly CHAPTER PROBLEM
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