8 Ship Crash Prevention Toward Oil Spill Incidents
73
Table 8.6 Summary of the
respondent demographic
Descriptions
Respondent Percentage
(a) Gender:
Male
36
67.9
Female
17
32.1
(b) Age (years old):
18–25
23
43.4
26–35
11
20.8
36–45
13
24.5
Above 46
6
11.3
(c) Working Experiences (in the
year):
Less than 1
9
17.0
2–5
23
43.4
6–10
8
15.1
More than 11
13
24.5
(d) Current Positions:
General Manager
3
5.7
Director
4
7.5
Manager
4
7.5
Supervisor
4
7.5
Technician
2
3.8
Clerk
2
3.8
Others
34
64.2
C. The Efficiency of Ship Operations
Table 8.7 shows that ship operations are an effective approach to avoid the ship
from a crash that leads to oil pollution. The residual value for efficiency is at 25.5. It
implies the leading value is the outcome where the ship operations are an effective
protection step to avoid the ship to crash. The test statistics in Table 8.8 show the
significant value which has 0.000 and is below the P-value.
Table 8.7 The efficiency of
ship operations
Maintenance
Observed N
Expected N
Residual
Not efficient
1
26.5
-25.5
Efficient
52
26.5
25.5
Total
53