t-test results of each ship's arrival/departure component
| Ship arrival/departure component | No. of samples | Mean | Standard deviation | t-value | p> ǀtǀ | Acceptance | |
|---|---|---|---|---|---|---|---|
| Ship arrival/departure frequency and route diversity | Previous studies | 121 | 3.876 | 0.781 | 3.587 | 0.000 | o |
| This study | 133 | 4.203 | 0.672 | ||||
| Time in port and waiting time of ships | Previous studies | 121 | 4.392 | 0.610 | 0.275 | 0.783 | x |
| This study | 133 | 4.414 | 0.653 | ||||
| Ship arrival/departure information system (VTS, etc.) | Previous studies | 121 | 3.711 | 0.747 | 4.094 | 0.000 | o |
| This study | 133 | 4.083 | 0.697 | ||||
| Ship arrival/departure component | No. of samples | Mean | Standard deviation | Acceptance | |||
|---|---|---|---|---|---|---|---|
| Ship arrival/departure frequency and route diversity | Previous studies | 121 | 3.876 | 0.781 | 3.587 | 0.000 | o |
| This study | 133 | 4.203 | 0.672 | ||||
| Time in port and waiting time of ships | Previous studies | 121 | 4.392 | 0.610 | 0.275 | 0.783 | x |
| This study | 133 | 4.414 | 0.653 | ||||
| Ship arrival/departure information system (VTS, etc.) | Previous studies | 121 | 3.711 | 0.747 | 4.094 | 0.000 | o |
| This study | 133 | 4.083 | 0.697 | ||||
Source(s): Authors' own work based on survey results
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