degree rank sex year ysdeg salary Masters Prof Male 25 35 137450 Masters Prof Male 13 22 111400 Masters Prof Male 10 23 98950 Masters Prof Female 7 27 90034 PhD Prof Male 19 30 122892 Masters Prof Male 16 21 95882

4. Re-examine salary comparing its distribution among female versus male Professors, highlighting the quartiles in your comparison (though not to the exclusion of other summary statistics). (a) (2 points) Use the graphical display most fit for our declared purpose. (b) (2 points) Comment on the results (c) (2 points) Provide descriptive statistics to support your comments