PENGARUH KETERSEDIAAN KAPAL TUNDA TERHADAP PELAYANAN JASA TUNDA OLEH PT JASA ARMADA INDONESIA TBK DI PELABUHAN TANJUNG PRIOK

Abstract

Salsabilla.2025. “The Effect of Tugboat Availability on Tugboat Services by PT Jasa Armada Indonesia Tbk at Tanjung Priok Port” The high demand for tugboat services has the potential to affect the availability of tugboats. This study aims to determine the effect of tugboat availability on tugboat service by PT Jasa Armada Indonesia Tbk at Tanjung Priok Port. The research method uses a quantitative approach of primary and secondary data. The population is 100 people, with a sample of 80 respondents with the Slovin formula (5% error rate). Analysis techniques include validity, reliability, correlation, determination, simple linear regression, and hypothesis testing. The results of the reliability test show a Cronbach's Alpha value of 0.886 (X) and 0.843 (Y), proving the instrument is reliable. Correlation analysis shows a very strong relationship (r = 0.805), while linear regression produces the equation Y = 15.769 + 0.372X, indicating that every 1 unit increase in tugboat availability increases service by 0.372. The coefficient of determination (R² = 0.648) proves that 64.8% of service variations are influenced by tugboat availability, the remaining 35.2% by other factors. Hypothesis test (tcount = 11.987 > ttable = 0.1852) rejects H0, confirming a significant effect. The conclusion of the study states that the availability of tugboats has a positive and very strong effect on tugboat services. The suggestion is the need for additional ships during peak season or ship charter and ensuring that the implementation of SOPs is in accordance so as to increase service satisfaction.