Question

The variation of incomes of executives is to be compared with the variation of incomes of
unskilled employees. For a sample of executives, mean = Ksh 500,000 and
Standard deviation = Ksh 50,000. For a sample of unskilled employees, the
mean = Ksh 12,000 and standard deviation = Ksh 2000.
Is the variation among the executives greater than the variation among the unskilled
employees? Justify you answer.