Administrators of the San Francisco airport conduct a survey every year to analyze guest satisfaction.
a) Download the 2011 data “2011_SFO_Customer_Survey.”
b) Visualize the responses of guests for “On-time status of flight” and interpret the results. Note that to interpret the results, you will have to download the variable dictionary “AIR_DataDictionary_2011-SFO-Customer -Survey.” Also, be aware that the dictionary refers to the variable as “LATECODE” instead of “On-time status of flight.”