Question

The Air Travel Consumer Report, a monthly product of the Department of Transportation’s Office of Aviation Enforcement and Proceedings (OAEP), is designed to assist consumers with information on the quality of services provided by airlines. The report includes a summary of consumer complaints by industry group and by complaint category. A breakdown of 1,114 December 2013 consumer complaints based on industry group is given in the following table:
a. Construct a Pareto chart for the number of complaints by industry group. What industry group accounts for most of the complaints? The 992 consumer complaints against airlines fall into one of two groups: complaints against U. S. airlines and complaints against foreign airlines. The following table summarizes these 992 complaints by complaint type:
b. Construct pie charts to display the percentage of complaints by type against U. S. airlines and foreign airlines.
c. Construct a Pareto chart for the complaint categories against U. S. airlines. Does a certain complaint category account for most of the complaints?
d. Construct a Pareto chart for the complaint categories against foreign airlines. Does a certain complaint category account for most of the complaints?


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  • CreatedJuly 16, 2015
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