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All Journal Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat MES: Journal of Mathematics Education and Science Journal of Mathematics Technology and Education

Rosman Siregar

Universitas Sumatera Utara

Author-ID : 4069809

Agriculture, Biological Sciences & Forestry 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 Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Forecasting the Production Results of Medicine Horticultural Plants (Biofarmacies) in North Sumatra in 2020 and 2021 Using Double Exponential Smoothing Brown Method Lia Herna Sinaga; Rosman Siregar
Journal of Mathematics Technology and Education Vol. 1 No. 2 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Indonesian medicinal plants have a high contribution to world drug production. North Sumatra is one of provinces that produces a variety of traditional medicinal plants. The data in this study is secondary data obtained from the Central Statistics Agency of North Sumatra which is data on the amount of production of medicinal horicultural plants (biopharmaceuticals) from 2007-2019 using the method Double Exponential Smoothing Brown. The purpose of this research is to get the parameters α and shape forecasting equation that can be used to estimate the amount of production of the total production of horticultural crops medicin from 2006 to 2018 by using the size of the precision of the forecasting Mean absoulte Percentage Error in the method of Double Exponential Smoothing Brown. The parameter α is best used to predict the amount of horticultural crop production of medicinal was 0.24 with a yield forecasting in 2020 amounted to 8,454,007.24 kg and in 2021 amounted to 7,779,411.27 kg.

Forecasting the Number of Child Development Therapy Patients at Mentari Anakku Clinic Tangerang in 2021 with the Double Exponential Smoothing Method Haliza Nurbaiti; Rosman Siregar
Journal of Mathematics Technology and Education Vol. 1 No. 2 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

Clinic is a health service facility that organizes and provides basic and specialist medical services, organized by more than one type of health worker and led by a medical worker. This study aims to determine fluctuations and predict the number of therapy patients at the Child Development Clinic (Mentari Anakku) using the time series method, namely double exponential smoothing. Based on the results of the forecast using the double exponential smoothing method in the 2021 period, it is known that the total number of child development therapy patients is 7,062 people. It can be seen that the total number of patients has increased quite significantly and it is necessary for the clinic to improve the performance of the workers.

Determination of the Inventory of Cassava Raw Materials UD Rezeky Baru Medan Based on the Economic Order Quantity (EOQ) Method Anastasia Claresta Silalahi; Rosman Siregar
Journal of Mathematics Technology and Education Vol. 1 No. 2 (2022): Journal of Mathematics Technology and Education
Publisher : Talenta Publisher

The need for an inventory control system basically arises because of problems faced by the company in the form of excess or shortage of company inventory. The EOQ (Economic Order Quantity) method is one of the inventory control methods used to determine the number of economic orders, namely the number of orders that meet the minimum total inventory cost. The purpose of this study was to determine the optimal amount of cassava raw material inventory at UD Rezeky Baru with the EOQ method and the comparison of the total cost of raw material inventory between costs according to the company and costs according to the EOQ method. Based on the results of calculations using the EOQ method, the optimal number of orders for cassava raw materials in 2019 is 18.722,62 kg. The total cost of raw material inventory using the EOQ method is Rp. 1.497.809,00, while according to the company, it is Rp. 9.467.640,00. The company can save on inventory costs by Rp. 7.969.830,00.

The Effect of Number of Population, Average Expenditure, Unemployment, and Number of Poor People in North Sumatra Province with Path Analysis Method Erwin; Muthia Ferliani Balqis; Rosman Siregar; Rony Genevent Marpaung; J.L. Marpaung
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

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.

Co-Authors Aminah Sari Anastasia Claresta Silalahi Citra Dewi Hasibuan E.D. Tarigan Erwin Haliza Nurbaiti Intan Nur Hidayah J.L. Marpaung Lia Herna Sinaga Mhd. Nasir Hasibuan Muthia Ferliani Balqis Nadya Pratiwi Nurul Maulida Surbakti Rony Genevent Marpaung Suyanto Syahriol Sitorus TJ Marpaung Yan Batara Siringoringo Zahedi

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