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Journal of Mathematics Technology and Education
Published by TALENTA PUBLISHER
ISSN : 28300394     EISSN : -     DOI : -
Core Subject : Economy, Science, Education, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Environmental Science Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Physics Social Sciences Transportation
ournal of Mathematics Technology and Education (JoMTE) is a peer-reviewed four times a year journal (March, June, September, and December) published by TALENTA Publisher and organized by Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara (USU) as an open access journal. It welcomes full research articles in the field of Mathematics and Applied Mathematics related to Mathematics Technology and Educational from the following subject area: Analytics, Operation Research, Statistics, Algebra, Differential Equations, Control Theory, Dynamics System, Mathematics Finance, Graph Theory, Combinatorial, and Mathematics Education.
Arjuna Subject : Matematika - Matematika Terapan
Articles 31 Documents
 1   2   3   4 
Implementation of Autoregresssive Integrated Moving Average (ARIMA) on Forecasting the Number of Positive Cases of Covid-19 in North Sumatra on September 2021: Implementasi Autoregresssive Integrated Moving Average (ARIMA) Pada Peramalan Jumlah Kasus Positif Covid-19 Sumatera Utara Pada September 2021 Laia, Herlina Fransiska; Zahedi
Journal of Mathematics Technology and Education Vol. 1 No. 3 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v1i3.8820

Abstract

North Sumatra is one of the provinces in Indonesia with a high number of positive cases of Covid-19 so that North Sumatra has been in the red and yellow zone for several months. The increasing number of positive cases can have an impact on various aspects of people's lives. To do optimal mitigation, forecasting is necessary, which is a technique to estimate a value in the future by paying attention to past data and current data. One method that can be used is the ARIMA method. The data used is daily data from May to August 2021 obtained from the official website of the covid19.go.id. The ARIMA model obtained from this study is the ARIMA(1,1,0) model with MAE, MAPE and MSE values of 453,175203, 3,312754324, and 6161032,938, respectively. Forecast results for September show a daily increase so it is expected that the government will make efforts to prevent this.
Application of Fuzzy Service Quality Method in Student Satisfaction Analysis of School Service Quality at SMAN 1 Simanindo, Samosir Regency: Penerapan Metode Fuzzy Service Quality Dalam Analisis Kepuasan Siswa Terhadap Kualitas Pelayanan Sekolah SMAN 1 Simanindo Kabupaten Samosir Siahaan, Irfan Efendi; Marbun, James Piter
Journal of Mathematics Technology and Education Vol. 1 No. 3 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v1i3.8968

Abstract

To improve the quality of service, it is necessary to know the extent to which thelevel of consumer assessment of service quality, whether the service received is in accordancewith consumer expectations or not. This research was conducted to determine student satisfaction with the service quality of SMAN 1 Simanindo School. The method used in this studyis the Fuzzy Service Quality method which aims to determine the gap that occurs between theservices received and student expectations. The results of data processing indicate that theattribute that is the main concern to be prioritized by the school so that improvements can bemade is the completeness of extracurricular support with a gap (-15.370). Based on the valueof the gap per dimension, the dimension that has the largest gap value is the dimension thatneeds to be prioritized by the school for improvement. The dimension that has the largest gapvalue is the physical dimension (tangiable) with a gap value of -12.98. Based on the Cartesiandiagram, the attributes that require priority treatment from the school are the completeness ofbooks and reference sources in the library and the school’s ability to produce quality alumni.The attributes of the question are located in quadrant I. Based on the Fuzzy Service Qualityanalysis, the overall attributes have a negative gap value. This shows that the quality of service provided by the school is unsatisfactory and still in dire need of improvement.
Parameter Estimation of GARCH Model with Bootstrap Approximation: Penaksiran Paramater Model GARCH Menggunakan Pendekatan Bootstrap Hutasoit, Anggiarmi; Sutarman
Journal of Mathematics Technology and Education Vol. 1 No. 3 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v1i3.9261

Abstract

This study aims to estimate the parameters of the Generalized Autoregressive Conditional Heteroscedasticity (GARCH) model using a bootstrap approach. In the heteroscedasticity data model, it is determined how much the residual value of the sample used is. The bootstrap approach is a non-parametric and resampling technique used to estimate the parameter. From the sample data implemented, the residual estimation using the Maximum Likelihood Estimation method is - 0.065851304. Furthermore, the residual estimation value using the bootstrap approach is -1.769129241. Thus, the use of the bootstrap approach in the GARCH model results in a smaller residual value than MLE.
Fixed Point of Contractive Mappings in Cone Metric Space: Titik Tetap dari Fungsi Kontraktif pada Ruang Metrik Cone Sitorus, Clara Magdalena; Herawati, Elvina
Journal of Mathematics Technology and Education Vol. 1 No. 3 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v1i3.9766

Abstract

The concept of a fixed point of a function is closely related to the abstract space of the function it is in, one of which is the cone metric space which is a generalization of the metric space and which was first introduced by Zhang and Huang in 2007. The cone metric space is any non-empty set that with cone metric function. The cone metric function has the domain of any non-empty set and has the codomain of an ordered Banach space. The purpose of this study is to recognize the concept of the cone metric space and its relation to the metric space, as well as to examine the fixed point theorem on the cone metric space.
Analysis of the Effect of Population and Average Net Wage/Salary on the Number of Poverty in Medan Using Linear Regression Method Marpaung, TJ; Tarigan, E.D.; Marpaung, Rony Genevent; Marpaung, J.L.
Journal of Mathematics Technology and Education Vol. 2 No. 2 (2023): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v2i2.13587

Abstract

In this study, the total population along with the average net salary was selected for poverty. The data information used in this study is data derived from agencies. In obtaining the results of the analysis on the influence of variables, multiple linear regression was used. The interpretation of this study shows that there is a significant influence between population and average net salary on poverty. The larger the population and the smaller the average net wage/salary, the higher the poverty rate. It is hoped that this research will be able to show a framework of what factors influence poverty so that it can be used as a reference to overcome the problem of poverty in Indonesia, especially the city of Medan. This study does not use manual calculations, and aims to analyze the relationship between population (M1) and average wage / net salary (M2) with the amount of poverty (D). The equation D is 221105.0 - 0.0147 M1 + 0.0147 M2, with the value of the influence of M1 and M2 on D amounting to 0.341.
Double Exponential Smoothing Method to Forecast the Production of Tembakau in North Sumatra Marpaung, TJ; Siringoringo, YB; Marpaung, Rony Genevent; Marpaung, J.L.
Journal of Mathematics Technology and Education Vol. 2 No. 2 (2023): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v2i2.13588

Abstract

Forecasting is the process of using mathematical calculations and quantitative data from the past to predict situations that have not occurred or will occur in the future. Determine the strategy used in pursuing choices based on several things that have been done so that it is very feasible for planning. Brown's Double Exponential Smoothing, especially the smoothing approach with alpha values of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, and 0.9 will be used as a forecasting technique in this study. Using tobacco production data from 2012 to 2021, the forecasting results show that the best guess value achieves the smallest Mean Absolute Precentage Error (MAPE) of the nine alpha values used. with the parameter alpha = 0.2 produces the lowest error rate of 21.37 percent. The form of the forecasting equation is Fi+m = 1666.84892857549 + 86.604473843712 m. That is, the accuracy of forecasting the amount of tobacco production in the next ten years is 65.37 percent.
The Effect of Number of Population, Average Expenditure, Unemployment, and Number of Poor People in North Sumatra Province with Path Analysis Method Erwin; Balqis, Muthia Ferliani; Siregar, Rosman; Marpaung, Rony Genevent; Marpaung, J.L.
Journal of Mathematics Technology and Education Vol. 2 No. 2 (2023): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v2i2.13589

Abstract

Poverty is an economic problem so that a person experiences the inability to meet the necessities of life caused by the economy not meeting the average standard of living of society in general. This research is to find out how much influence it has on population, average public expenditure, unemployment, and the number of poor people in the province of North Sumatra. Since the Covid-19 pandemic, there has been an increase in the poverty rate in 2021-2022. The percentage of poor people in September 2022 was 9.57 percent, an increase of 0.03 percent from March 2022 and a decrease of 0.14 percent from September 2021. Many people are experiencing unemployment due to reduced job opportunities. This research was conducted using the path analysis method and SPSS version 22 software. This research used quantitative data obtained from data from the Central Bureau of Statistics. Data were tested using the Classical Assumption Test, Hypothesis Test, and Correlation Coefficient Test. The research results obtained have a direct influence on the Independent Variables and Dependent Variables namely; Total Population (X1) and Average Spending (X2) on Unemployment (Y) where there is a significant value less than 0.05, which means it has a significant effect. The results obtained in the analysis model equation Y = 0.385X1 + 0.117X2 + 0.233Z + 0.905.
Analysis of the Effect of District / City Minimum Wage and Labor Force Participation Rate on the Open Unemployment Rate of North Sumatra Province in 2021-2022 Erwin; Hasibuan, Citra Dewi; Marpaung, Rony Genevent; Marpaung, J.L.
Journal of Mathematics Technology and Education Vol. 2 No. 2 (2023): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v2i2.13590

Abstract

Open unemployment is still a major economic problem in North Sumatra Province. This study aims to analyze the effect of Regency / City Minimum Wage, Labor Force Participation Rate, and Gross Regional Domestic Product on the Open Unemployment Rate in North Sumatra Province in 2021-2022. The type of data used is secondary data obtained from the North Sumatra Province Statistics Agency. The results showed that there was a simultaneous significant influence between the three independent variables, namely district / city minimum wage, labor force participation rate, and gross regional domestic product on the dependent variable, namely the open unemployment rate ???? = 0.164????1 − 0.694????2 − 0.032???? + 0.424. The simultaneous effect is 57.6% and the remaining 42.4% is explained by other variables not included in the study.
Application of Pathway Analysis Factors Affecting the Human Development Index in North Sumatra in 2021-2022 Erwin; Balqis, Muthia Ferliani; Marpaung, Rony Genevent; Marpaung, J.L.
Journal of Mathematics Technology and Education Vol. 2 No. 2 (2023): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v2i2.13591

Abstract

The Human Development Index (IPM) measures human development achievements based on a number of basic quality of life components. As a measure of quality of life, HDI is built through a basic three-dimensional approach. These dimensions include a long and healthy life; knowledge, and a decent life. These three dimensions have a very broad meaning because they are related to many factors. To measure the health dimension, life expectancy at birth is used. Furthermore, to measure the dimensions of knowledge, a combination of literacy rate indicators and the average length of schooling is used. This study aims to determine the relationship or influence between variables on the human development index. These variables are the average length of schooling, life expectancy, and the percentage of poor people. This research uses survey data from BPS North Sumatra for the 2021-2022 period. Data processing uses path analysis with the help of SPSS version 23 software. The path equation obtained in this study is Y = 0.672X1 + 0.297X2 − 0.223Z + 0.081. The results showed that there was a significant influence between the average length of schooling, life expectancy, and the percentage of poor people on the human development index.
Implementation Of Economic Production Quantity (EPQ) Method in Controlling Brick Production at UD SM Edi- Mardiana Serdang Bedagai Rosmaida Zendrato; Manurung, Asima
Journal of Mathematics Technology and Education Vol. 1 No. 3 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jomte.v1i3.9820

Abstract

achieving its goals, the company will face certain obstacles so that the companymust have good management. Because without good management the company will experiencea shortage of production (shortage) or excess production (over stock) which results inlosses for the company. UD. SM Edi Mardiana Serdang Bedagai is a business that producesbricks which is experiencing problems in the form of excess production inventory. Therefore,a policy is needed to control the amount of production by adjusting consumer needs so as notto cause losses for the company. One method that can be used is the Economic ProductionQuantity (EPQ) method which can determine the optimal production level, the optimal timeinterval to minimize inventory costs. From the results of calculations using the EPQ method,the optimal level of brick production for each production period is 4.326.589.75 seeds withan interval of 6,79 months and the total cost of procuring production with the EPQ method isRp313.532.065,9

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