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jurnal.varian@stmikbumigora.ac.id
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INDONESIA
Jurnal Varian
Published by Universitas Bumigora
ISSN : -     EISSN : 25812017     DOI : https://doi.org/10.30812/varian
Core Subject : Economy, Science, Education, Social,
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Mathematics Social Sciences Other
Jurnal Varian adalah salah satu Jurnal Ilmiah yang terdapat di Universitas Bumigora. Jurnal ini bertujuan untuk memberikan wadah atau sarana publikasi bagi para dosen, peneliti dan praktisi baik di lingkungan internal maupun eksternal Universitas Bumigora Mataram. Jurnal ini terbit 2 (dua) kali dalam 1 tahun pada periode Genap (April) dan Ganjil (Oktober). Jurnal Varian fokus memuat publikasi pada Bidang Matematika dan Statistika.
Arjuna Subject : Matematika - Statistik dan Probabilitas
Articles 168 Documents
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KARAKTERISTIK BUTIR SOAL TRY OUT UJIAN NASIONAL SMA MATA PELAJARAN MATEMATIKA Se-KOTA MATARAM DENGAN MENGGUNAKAN PROGRAM ITEMAN Habib Ratu Perwira Negara; Kiki Riska Ayu Kurniawati
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.67

Abstract

The purpose of this research was to know how characteristic items of Try Out National Exam Year 2010/2011 at Senior High School on Mathematics Subject in Mataram City that analyzed by using Iteman Program. The characteristic in question was whether the item can be used or not based on the difficulty level of the item, the difference in power, and the functioning of the answer option. The research method used was descriptive. Techniques of collecting data in the form of documents. Source of data in the form of answer sheet of computer package 61 of Try Out National Exam Year 2010/2011 at Senior High School on Mathematics Subject in Mataram City. Aspects analyzed by using this Iteman Program include the level of difficulty item, different power, and the function of whether or not the answer choice. Based on the results of Item of Analysis Try Out National Examination of School Year 2010/2011 Senior High School on Mathematics Subjects in Mataram City by using Iteman Program, it can be concluded that for the level of difficulty Package 61 was classified. Different power for package 61 has a good category. For the reliability of having a high category and a matter of Try Out Package 61 there are 23 problems received with the improvement of 4, 5, 8, 9, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 28, 30, 31, 32, 34, 35, 36, and 40. Improvements need to be made on the less functioning effluent. There are 15 accepted questions: 1, 2, 3, 7, 10, 11, 12, 13, 15, 27, 29, 33, 37, 38, and 39. And there are 2 rejected questions 6 and 25.
ANALISIS PORTOFOLIO INVESTASI PADA SAHAM LQ45 DENGAN METODE MEAN VARIAN SATU KONSTRAIN Gilang Primajati
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.68

Abstract

In the capital markets, especially the investment market, the establishment of a portfolio is something that must be understood by investors. Portfolio formation by investors to maximize profits as much as possible by minimizing the risk of losses that may occur. Portfolio diversification is defined as portfolio formation in such a way that it can reduce portfolio risk without sacrificing returns. Optimal portfolio with efficient-portfolio mean criteria, investors only invest in risk assets only. Investors do not include risk free assets in their portfolios. The efficient variance portfolio is defined as a portfolio that has minimum variance among the overall possible portfolio that can be formed, at the same expected return rate. The mean method of one constraint variant can be used as the basis for optimal portfolio determination. The shares of LQ-45 used are shares of AALI, BBCA, UNVR, TLKM and ADHI. AALI shares received a positive weight of 7%, BBCA 48%, UNVR 16%, TLKM 26% and ADHI 3%
PEMODELAN INDEKS PEMBANGUNAN MANUSIA KABUPATEN/KOTA DI PROVINSI PAPUA DAN PAPUA BARAT TAHUN 2014 Vita Fibriyani; Ani Afifah
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.69

Abstract

Human Development Index is a measure of human development achievement based on the appropriate dimensions of health, education, and living. Papua is located in eastern Indonesia consisting of 2 provinces of Papua and west Papua. This study conducted a research about modeling of district/city of human development index value using binary logistic regression model, estimation of model parameters using maximum likelihood method. The data used in this study is secondary data obtained from the central statistical agencies of Papua and West Papua provinces. This study involved several factors that predicted to be affected the Human Development Index of district/city in both provinces, namely PDRB/capita, sex ratio, population density, population growth rate and number of mobile health centers. Based on the result of the analysis, it can be seen that the independent variables that significantly influence the value of Human Development Index of district/city in Papua 2014 is income/capita with the probability value of 0.003 and the population of mobile health centers with the probability of 0.034
STRUKTUR KEPEMILIKAN DAN NILAI PERUSAHAAN: (STUDI PADA PERUSAHAAN MANUFAKTUR YANG LISTING DI BURSA EFEK INDONESIA) Restu Fahdiansyah; Jihadil Qudsi; Adam Bachtiar
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.70

Abstract

The purpose of company management in general is to generate profit, but furthermore the management of the company is required to improve the welfare of the owners of the company or in this case the shareholders. To achieve these objectives, it is necessary to have ownership structures that can provide maximum supervision to managers in order to carry out their duties to improve the welfare of the owners of the company through increasing the value of the company. This is in accordance with the agency theory developed by Jensen Meckling stating that the manager as an agent delegated by the owner of the company to manage the company. In the process of managing the company, according to Jensen Meckling there is possible occurrence of agency problems, which arise because of the tendency of managers to not always make decisions that aim to meet the interests of principals or owners of the company to the fullest. To align the interests of managers and owners of the company so as to reduce agency problems, it is necessary to have a good ownership structure, capable of monitoring the performance of management in meeting the interests of the owner of the company. Therefore, this study would like to examine how ownership structures proxied with institutional ownership and managerial ownership can influence the value of firms that can ultimately have an impact on increasing shareholder wealth. This study tested 71 manufacturing companies listed on the Indonesian Stock Exchange in 2016 using multiple regression analysis techniques. The test results show the significant influence of variables with institutional ownership and managerial ownership of firm value, which shows that the ownership structure that allows the owner of the company to supervise the performance of the company's management can have an impact on the increase of company value.
ANALISIS RAGAM DIALOG DIAGNOSIS PENYAKIT BERBASIS SPK MODEL TAM DENGAN SEMPLS Sandi Justitia Putra; Jian Budiarto; Jihadil Qudsi
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.71

Abstract

Decision Support System provides problem solving with semi structured and unstructured conditions. Decision Support System also has a role in the medical world, used in diagnosing diseases based on examination of patients. But often occurs less implementation due to the system interface interface that is not in accordance with the wishes of users. System interface interface tested there are 3 stages, namely anamnesis stage, physical examination stage, and examination. The choices given to the respondents are 3 interface design with various dialogue techniques for the anamnesis and physical examination phase ie Natural Language Process, Menu System and Filling Form and 2 interface design for supporting investigation ie Windowing System and Graphic Interaction. After the respondents made a choice on the questionnaire sheet, statistical tests were performed based on the Technology Acceptance Model. The result of the analysis shows the design according to the respondent's wishes on the decision support system to diagnose the disease at the anamnesis stage and physical examination stage is the design of the interface system with the filling form because of the larger R square model value at each stage of the interface design Natural Language Process and Menu System , while the supporting stage is the graphical interface interaction design on the graphical display, because of the larger R square model values ​​at each stage of the windowing system interface design.
ANALISIS DATA PANEL PADA KINERJA REKSADANA SAHAM I Gede Agus Astapa; Gede Suwardika; I Ketut Putu Suniantara
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.72

Abstract

Mutual funds is another investment opportunity with a more measurable risk as well as return high enough with enough capital is affordable for the community. Mutual fund performance can be measured by several indicators.. Modeling the performance of mutual funds modeled by regression of the data panel. The regression model estimation data panel will do with the three approaches, namely the approach of common effect, fixed effects and random effects. This research purpose to know the performance of mutual funds from stock selection skill variable influences, market timing ability and level of risk with the use of panel data analysis. The results shows that the Fund's performance is affected by the stock selection skill, market timing ability, and the level of risk. Model the right approach to model the performance of mutual funds by using a random effects model.
HUBUNGAN ANTARA PRESTASI MAHASISWA DAN KEMAMPUAN BERBAHASA INGGRIS DENGAN LAMA STUDI (Studi Kasus pada Wisudawan Universitas Merdeka Pasuruan Tahun Ajaran 2016/2017) Dwita Laksmita Rachmawati; Vita Fibriyani
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.73

Abstract

Education is the most important thing in a person’s life. Formal education is the learning process held by a particular educational institution, starting from the elementary, secondary, and higher education. To produce well-qualified college graduates, good teaching and learning process is needed. Determination of learning achievement in Higher Education is in the form of score of test results and observation conducted by the lecturer. The competence of college graduates cannot be seen only from the GPA and study duration, but also the ability of foreign language such as English. This study aims to determine the relationship between student achievement and English proficiency with study duration. Sampling techniques is done randomly. Statistical analysis used for this study was Pearson correlation analysis and testing the hypothesis by using Z-test. The result of the analysis indicates that there is a significant relationship statistically between student achievement and graduates’ study duration of Merdeka University Pasuruan that is the correlation coefficient obtained was –0.515. It means that the better (higher) of students’ achievement the faster the length of study will be, and the lower the students’ achievement then the longer the duration of the study period will be. For the relationship between the students’ abilities of foreign language with the duration of study, obtained correlation coefficient of 0.102, but the relationship formed insignificant statistically.
EFEKTIVITAS PENGGUNAAN ALAT PERAGA TERHADAP PENINGKATAN PRESTASI BELAJAR SISWA PADA MATERI BANGUN RUANG SISI DATAR (KUBUS DAN BALOK) Ahmad Ahmad; Ahmad Sehabuddin
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.74

Abstract

A props is a tool when learning. In the case on the subject of plane geometry, props are urgently needed to visualize the material taught by the teacher, so that students can see firsthand the real forms of flat-side building. Learning by using props can focus students and can increase student’s activity and motivation. The purpose of this study is to determine the effectiveness of the use of props in improving student achievement on the subject of plane geometry in class V MI Nurul Yaqin Kelanjur. This research is a quasi-experimental research where the researcher only control the variables in the class. Research method used in this research is quantitative method by using t-test formula. The research population is class V MI Nurul Yakin Kelanjur which amounted to 12 people by given preetest and posttest.Based on the results of hypothesis test data analysis with t-test, it’s found that there are significant differences between student achievement before and after using props, this can be seen from tcount = 3.782 > ttable = 1.717, so H0 rejected. To find out whether the learning by using props effectively or not, seen from the mastery of individual and classical mastery. Students' mathematics learning achievement after using props has been found that many students are 91.67% complete. Because the complete student achieves 85%, the student is said to be thoroughly classical. Based on research result, it can be concluded that learning by using props on the subject of plane geometry effective to do.
PENGARUH STRATEGI POSITIONING TERHADAP KEPUTUSAN PEMBELIAN PADA PRODUK AIR MINUM DALAM KEMASAN BOTOL MEREK NARMADA (STUDI KASUS : PADA MASYARAKAT LINGKUNGAN KEBUN SARI MATARAM) Phyta Rahima
Jurnal Varian Vol 1 No 2 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v1i2.75

Abstract

This study aims to examine the influence of positioning strategy variables consisting of Product Attributes, Product Benefits, Product Users, Product Competitors, and Product Benefits. Objects in this Research is Environmental Society Kebon Sari Ampenan Mataram City. The population of this research is all society environment Kebon Sari Mataram which consume drinking water in packing either gallon or bottle even glass. The sample in this study amounted to 30 people. Sampling using Nonprobability Sampling is by Purposive Sampling. The instrument of data collection using questionnaires with Likert scale which each have been tested and has fulfilled the validity and reliability requirements. Data analysis using multiple linear regression. The result of multiple linear regression analysis showed that product attribute had positive effect on purchasing decision with regression coefficient value from product attribute (X1) was 0,038 (positive value) with significance equal to 0,844 (<0,05). Benefit positive effect on purchasing decision with the value of regression coefficient from Benefit (X2) is 0,192 (positive value) with significance equal to 0,487. Users positively influence purchasing decision with value of regression coefficient of quality variable (X3) is 0,449 (positive value) with significance equal to 0,090. Competitor positively influence to purchase decision with value of regression coefficient from competitor (X4) is 0,048 (positive value) with significance equal to 0,073 (<0,05). The price of the product has a positive effect on the purchase decision with the coefficient value of 0.358 with the significance level of 0.073 (<0.05). From these results can be known that the biggest variables affect the purchase decision is the User.
Analisis Komponen Utama pada Kondisi Aset Koperasi Simpan Pinjam di Indonesia: Data BPS Tahun 2012-2015 Bernadhita Herindri Samodera Utami; Miswan Gumanti
Jurnal Varian Vol 2 No 1 (2018)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v2i1.313

Abstract

Memasuki tahun 2000, koperasi di Indonesia didominasi oleh Koperasi Simpan Pinjam. Koperasi simpan pinjam adalah koperasi yang memiliki usaha tunggal yaitu menampung simpanan anggota dan melayani peminjaman. Manfaat ekonomi masa depan yang terwujud dalam aset adalah potensi dari aset tersebut untuk memberikan sumbangan, baik langsung maupun tidak terhadap aliran kas dan setara kepada entitas. Penelitian ini bertujuan untuk menentukan hubungan antar variabel yang mempengaruhi perkembangan aset koperasi simpan pinjam di Indonesia sejak tahun 2012-2015 dengan menggunakan Analisis Komponen Utama (AKU). AKU merupakan salah satu teknik untuk menganalisis data berdimensi besar [1].

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