Amr Farahat|Susan E. Martonosi
Case Article—Flight Delays at RegionEx
Cornell University|Harvey Mudd College
case two fictitious airlines regionex small regional airline contracted regional carrier mississippidelta airlines mda major us airline september regionex exhibited worse flight delay record mda risk losing contract flight operations manager regionex tasked analyzing flight delay records explaining regionexs seemingly poor performance regionexs chief operations officer reflecting recommendations guidelines assessment instruction statistics education gaise published american statistical association case emphasizes statistical literacy conceptual understanding data analysis rather rote procedures undergraduate mba students use basic data analysis techniques graphical analysis descriptive statistics twosample hypothesis testing correlation discover important paradoxes flight delay data learn subtle differences definition business performance metrics radically change interpretation graphical analysis data provide information distributions masked summary statistics aggregating data across disparate sample sizes skew means simpsons paradox correlation imply causation case teaching note interested instructors please see instructor materials page access restricted materials maintain integrity usefulness cases published ite unapproved distribution case teaching notes restricted materials party prohibited