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
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
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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Question Five
HR manager in L&B real-state company is working with finance department in improving the salaries and the following
Table (2)
Department |
Mean |
SD |
CoefVar |
Min |
Q1 |
Median |
Q3 |
Max |
IQR |
Skewness |
Finance |
6.052 |
3.874 |
64.01 |
1.630 |
3.393 |
(a) |
7.500 |
22.860 |
4.107 |
2.00 |
HR |
5.441 |
3.235 |
(b) |
2.000 |
3.200 |
4.100 |
6.430 |
21.860 |
3.230 |
(C) |
IT |
5.880 |
3.887 |
66.10 |
0.530 |
3.250 |
4.630 |
(d) |
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), (c) and (d).
- 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 department has higher outliers.
- Based on your answer in (3), 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
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