The Wall Street Journal CEO Compensation Study analyzed chief executive officer (CEO) pay from many U.S. companies with fiscal year 2008 revenue of at least $5 billion that filed their proxy statements between October 2008 and March 2009. The data are in the file P02_30.xlsx.
a. Create a new variable Total 2008, the sum of Salary 2008 and Bonus 2008. (Actually, this is not Ă˘â‚¬Ĺ“totalĂ˘â‚¬Âť compensation because it omits the very lucrative compensation from stock options.) Also, recode Company Type so that the Technology and Telecommunications are collapsed into a Tech/ Telecomm category.
b. Find the mean, median, and standard deviation of Total 2008, broken down by the recoded Company Type. Also, create side-by-side box plots of Total 2008, again broken down by the recoded Company Type. What do the results tell you about differences in level or variability across company types?
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