Global Engineers Hired the Following Number of Class 1 Engineers

Essay

Global Engineers hired the following number of Class 1 engineers during the first six months of the past year.(Assume the data represent a sample. )

a.Determine the mean,the median,the mode,and the range for the above data.
b.Compute the variance and the standard deviation.
c.Compute the first and the third quartiles.
d.Compute the z-scores for the months of May and June.