HR manager in L&B real-state company is working with finance department in improving the salaries and the following descriptive statistics were obtained. Table (2) Department Mean SD CoefVar Min Q1...

HR manager in L&B real-state company is working with finance department in improving the salaries and the following descriptive statistics were obtained.

Table (2)

Department	Mean	SD	CoefVar	Min	Q1	Median	Q3	Max	IQR	Skewness
Finance	6.052	3.874	64.01	1.630	3.393	4.585	7.500	22.860	4.107	2.00
HR	5.441	3.235	(a)	2.000	3.200	4.100	6.430	21.860	3.230	(b)
IT	5.880	3.887	66.10	0.530	3.250	4.630	(C)	24.980	3.550	2.18
Marketing	6.010	3.737	62.18	1.670	3.475	5.000	6.645	22.200	3.170	2.14
Training	6.095	3.719	61.02	1.500	3.330	5.000	7.640	20.000	4.310	2.00

CoefVar stands for coefficient of variation

graph (1)

The company has hired you to answer the following questions:

• Find the missing values of
  (a), (b)
  and
  (c).
  
  


• Do you think that the salaries in the departments are skewed, justify your answer with proper measure from table (2).


• Based on the boxplot for the salaries by department in graph (1), comment on the graph in terms of existence of outliers, skewness and which gender has higher outliers.


• Based on your answer in (1), comment and compare on the suitable central and absolute dispersion measures depending on table (2).


• Based on table (1), do you think the salaries of which group is more homogenous, support your answer and comment on the results.

Extracted text: Boxplot of salary 25 20 15 10 Finance HR IT Marketing Training Department * *** * *** ** * *** * * salary