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All Journal Media Statistika Prosiding Seminar Nasional Official Statistics
I Made Arcana
Politeknik Statistika STIS
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Social Sciences

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KAJIAN STATISTICAL DAN COST EFFICIENCY DALAM PENENTUAN GUGUS SAMPEL BLOK SENSUS TERBAIK (Studi Kasus: Sampling Design Susenas-2015 di Kabupaten Natuna) Wiwik Andriyani Lestari Ningsih; I Made Arcana
MEDIA STATISTIKA Vol 11, No 2 (2018): Media Statistika
Publisher : Department of Statistics, Faculty of Science and Mathematics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.295 KB) | DOI: 10.14710/medstat.11.2.93-105

Abstract

Two aspects of efficiency that should be considered in applying sampling design of a survey are statistical efficiency and cost efficiency. Efficiency in statistical aspect improves precision of estimators obtained by the survey data, whereas efficiency in cost aspect provides an economic survey. The purpose of this researchis to evaluate the both efficiencies in all possible census blocks (CBs) sample setand to identify the best CBs sample set in the 2015 National Socio-Economic Survey (Susenas). Therefore, a computer program for calculating statistical, and cost efficiency aspects was developed in this research to determine the best sampel set of  CBs among all possible sampel set of CBs based on sampling design of the 2015 Susenas implemented in Natuna District, Kepulauan Riau Province. The best possible sample set of CBs is determinedby considering statistical efficiency aspect, cost efficiency aspect, as well as combination of those two aspects. The result showed that the best sample set of CBs on statistical efficiency aspect provided the CBs sample set having minimum value of RSE index; evaluation on cost efficiency aspect provided the best CBs sample set having minimum value of total cost esimated using the total score of accessibility index; and evaluation on both efficiency aspects provided the best CBs sample set having minimum value of RSE index and minimum value of total score of accessibility index. Keywords: sampling design, all possible samples, statistical efficiency, cost efficiency
Determinan Risiko Kematian Pasien Covid-19 Mochammad Yusuf Maulana; I Made Arcana
Seminar Nasional Official Statistics Vol 2022 No 1 (2022): Seminar Nasional Official Statistics 2022
Publisher : Politeknik Statistika STIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.269 KB) | DOI: 10.34123/semnasoffstat.v2022i1.1301

Abstract

The Covid-19 pandemic in Indonesia in the middle of 2021 showed an increase in the number of people exposed to the corona virus and the number of deaths among Covid-19 patients. A relatively similar situation also occured in Tegal City, where the risk of death for Covid-19 patients was quite high. This study aims to identify variables that significantly affect the risk of death among Covid-19 patients based on patient medical record data in period of January to August 2021 at Kardinah Hospital, which is the education hospital and Covid-19 first-line referral hospital in Tegal City. A total of 477 patients Covid-19 hospitalization was the subject of observation in this study. The analytical method applied was survival analysis by implementing the Weibull Proportional Hazard (PH) model whose best model was based on the smallest AIC value. The results showed that the highest level of risk of death occurred in female patients who were short of breath, which was 2.9 times the risk of death experienced by female patients who were not short of breath.
Co-Authors MOCHAMMAD YUSUF MAULANA Wiwik Andriyani Lestari Ningsih