pareto chart
Pareto chart, histogram,
Ishikawa diagram
QUMAN
Pareto chart, histogram, Ishikawa diagram
Introduction
In below exercises we used Bar charts and Pareto chart to identify the most serious and frequent problems occurred in each of the two companies. We also used the Ishikawa diagrams to realize the reasons for the problems.
In this report we present the solutions of the two exercises.
Exercise 3
Complaint
Nicks and scratches from rough handling
Furniture rubbed together while on track
Late arrival from pickup
Broken glass
Missing items
Late delivery
Soiled upholstery
Delivered to wrong address
TOTAL
Complaint
Nicks and scratches from rough handling
Furniture rubbed together while on track
Late arrival from pickup
Broken glass
Missing items
Late delivery
Soiled upholstery
Delivered to wrong address
TOTAL
2
Frequency
28
17
16
13
10
7
6
3
% of all complaints 28%
17%
16%
13%
10%
7%
6%
3%
100
Jan Feb Mar Apr May Jun
5
5
3
3
5
5
5
2
5
2
5
5
5
1
5
5
5
5
5
5
5
3
5
1
38 28
18
8
5
3
Pareto
28%
45%
61%
74%
84%
91%
97%
100%
QUMAN
Pareto chart, histogram, Ishikawa diagram
a) Bar chart and Pareto diagram
In the bar chart we can clearly see that the most frequent problem is “nicks and scratches from rough handling”. We can see that the occurrence of this complaint is more often than the others.
On the Pareto chart we can see how the percentage of the complaints is rising. In this case the more useful way of communicating data is the bar chart as it shows what the most serious problem is for that company.
b)
Ishikawa
The Ishikawa diagram presented below shows the potential causes of the complaints. Thanks to this method the company could improve their work, as they are aware of the problems.
3
QUMAN
Pareto chart, histogram, Ishikawa diagram
Exercise 8
Cause
Acceptance of late passengers
Late baggage to aircraft
Mechanical
Ishikawa diagram
QUMAN
Pareto chart, histogram, Ishikawa diagram
Introduction
In below exercises we used Bar charts and Pareto chart to identify the most serious and frequent problems occurred in each of the two companies. We also used the Ishikawa diagrams to realize the reasons for the problems.
In this report we present the solutions of the two exercises.
Exercise 3
Complaint
Nicks and scratches from rough handling
Furniture rubbed together while on track
Late arrival from pickup
Broken glass
Missing items
Late delivery
Soiled upholstery
Delivered to wrong address
TOTAL
Complaint
Nicks and scratches from rough handling
Furniture rubbed together while on track
Late arrival from pickup
Broken glass
Missing items
Late delivery
Soiled upholstery
Delivered to wrong address
TOTAL
2
Frequency
28
17
16
13
10
7
6
3
% of all complaints 28%
17%
16%
13%
10%
7%
6%
3%
100
Jan Feb Mar Apr May Jun
5
5
3
3
5
5
5
2
5
2
5
5
5
1
5
5
5
5
5
5
5
3
5
1
38 28
18
8
5
3
Pareto
28%
45%
61%
74%
84%
91%
97%
100%
QUMAN
Pareto chart, histogram, Ishikawa diagram
a) Bar chart and Pareto diagram
In the bar chart we can clearly see that the most frequent problem is “nicks and scratches from rough handling”. We can see that the occurrence of this complaint is more often than the others.
On the Pareto chart we can see how the percentage of the complaints is rising. In this case the more useful way of communicating data is the bar chart as it shows what the most serious problem is for that company.
b)
Ishikawa
The Ishikawa diagram presented below shows the potential causes of the complaints. Thanks to this method the company could improve their work, as they are aware of the problems.
3
QUMAN
Pareto chart, histogram, Ishikawa diagram
Exercise 8
Cause
Acceptance of late passengers
Late baggage to aircraft
Mechanical