-
t
:
+:
+
t
:
negative relationship
positive relationship
+
-
-&
-
-
-
·
·
High speed boat
5
Fuel
4
efficiency
.
Luxurious interior
3
Durability
4
Safety features
5
: High
·
:
: Low
g
Easy maintenance
Advanced technology
4
Customization option
3
g
g
Medium
g