Pareto Analysis
Date: 2088-03-18 Time: 1:30 Venue: Science Lab
Instruction: Consider the followings for Construction of Pareto.
- Step 1: Form a table listing the problems and their frequency as a percentage.
- Step 2: Arrange the rows in decreasing order of importance (most important cause first).
- Step 3: Add a cumulative percentage column to the table.
- Step 4: Plot causes on X & cumulative percentage on Y.
- Step 5: Join the points to form a curve.
- Step 6: Plot a bar graph with causes on X and percent frequency on Y.
Pareto Matrix
| S.N. |
Problems |
Frequency (f) |
CF |
Cumulative Frequency % (C.F.%) |
| 1 |
35% to 40% |
12 |
12 |
26.66% |
| 2 |
60% to 65% |
10 |
22 |
48.89% |
| 3 |
50% to 55% |
8 |
30 |
66.67% |
| 4 |
80% to 85% |
7 |
37 |
82.22% |
| 5 |
70% to 75% |
4 |
41 |
91.11% |
| 6 |
90% to 95% |
3 |
44 |
97.78% |
| 7 |
95% to 100% |
1 |
45 |
100% |
Total N: 45
Total %: 100%
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