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Journal : Journal of Mathematics UNP

Analisis Regresi dengan Variabel Dummy pada Faktor Risiko Diabetes Mellitus Tipe 2 Diana, Putri; Murni, Dewi
Journal of Mathematics UNP Vol 8, No 3 (2023): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v8i3.14980

Abstract

Diabetes Mellitus is a metabolic disorder that occurs when blood glucose levels exceed normal limits, that is 126 mg/dl. If high blood sugar levels are not controlled, this can lead to complications and even death. This study aims to create a multiple linear regression model and discover the factors that affect blood sugar that it raises the risk of diabetes mellitus. This research using secondary data obtained from the Dadok Tunggul Hitam Health Center. The samples used were 286 samples. Blood sugar level is the dependent variabel, and the independent variabels are age, abdominal circumference, body mass index, and gender. By using multiple linear regression analysis using one dummy variabel, obtaines models:Y’ = 0,000157 -0,000001 X1 - 0,000001 X3 + 0,000013 DThe model shows that with α=5%, the variable that significantly affect blood sugar are gender, age, and body mass index.
Pengendalian Kualitas Telur Ayam Pada Proses Penetasan Menggunakan Metode Grafik Kendali T^2 Hotelling Di PT Japfa Comfeed Indonesia Padang Pariaman Erawati, Sisri; Murni, Dewi
Journal of Mathematics UNP Vol 9, No 1 (2024): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v9i1.15091

Abstract

In Padang Pariaman there is PT Japfa Comfeed Indonesia which focuses on breeding chicken eggs. Quality monitoring conducted by the company is still limited to recording the proportion of defective eggs originating from each region. However, the company has not carried out further quality control using statistical methods. This study aims to describe the state of the eggs and see whether the quality of the chicken eggs in the hatching process at the company is under statistical control on the Hotelling control chart. This research was conducted simultaneously which consisted of three correlated variables, namely thin eggs, cracked eggs, and broken eggs. The data obtained is then processed using the  Hotelling control chart method. Based on the results of the analysis, it was found that out of the 32 observations, 2 observation points were detected that were out of control (uncontrolled) from the upper limit (BKA) of the control chart. So it can be concluded that in July 2022 to June 2023 the process was not statistically controlled.
Analisis Multidimensional Scaling pada Pemetaan Kabupaten/Kota di Provinsi Sumatera Barat Berdasarkan Fasilitas Kesehatan Marwiyah, Leli; Murni, Dewi
Journal of Mathematics UNP Vol 9, No 2 (2024): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v9i2.13638

Abstract

Health facilities are places used for organize health efforts carried out by the government, local government and the community. The existence of health facilities illustrates how the process of fulfilling health needs in an area. According to the West Sumatra provincial health office, access to health services is hampered due to the limited number of health care facilities. This research was conducted using the multidimensional scaling method. This type of research is applied research. Based on the map generated by the MDS analysis, it was found that districts/cities that have similar characteristics of health facilities are Bukittinggi City, Sawahlunto City, Pariaman City, Solok City, Payakumbuh City, Padang Panjang City, Mentawai Islands Regency, Dharmasraya Regency and Sijunjung City: Pasaman Regency, Regency of South Solok and Tanah Datar Regencies. City Districts that need to be considered for the characteristics of health facilities are Agam District and Maternity Homes. District of Fifty Cities to Hospitals, Maternity Hospitals, Special Hospitals. Tanah Datar Regency to the Clinic.
Model Regresi Multivariat pada Tingkat Kesejahteraan Masyarakat di Sumatera Barat Zain, Wardinatul; Murni, Dewi
Journal of Mathematics UNP Vol 8, No 4 (2023): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v8i4.14305

Abstract

Analisis Kojoin Full Profile Dalam Pemilihan Kerudung untuk Mahasiswi Departemen Matematika Universitas Negeri Padang Pertiwi, Monica; Murni, Dewi
Journal of Mathematics UNP Vol 8, No 3 (2023): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v8i3.14306

Abstract

The veil is a kind of scarf that covers most of the top of a woman's head. The veiled order is an obligation and obedience to Allah and His Messenger. Now there are many types of headscarves such as rectangular or pashmina headscarves, making female students have to be selective in choosing a headscarf according to their needs but still follow the existing trends. This research aims to the preferred combination of UNP Mathematics Department students in choosing a headscarf. This study showed that the combination that students liked the most was pashmina headscarves, ceruty, plain, price ≤Rp. 35,000. With the highest level utility value at the price attribute ≤Rp.35,000 with the highest relative importance value of 58.10%.
Klasifikasi Calon Mahasiswa Penerima Beasiswa Baznas Kota Pariaman Menggunakan Metode K-Nearest Neighbor Dhelfiariani, Bestia; Murni, Dewi
Journal of Mathematics UNP Vol 9, No 2 (2024): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v9i2.15408

Abstract

Scholarship is a financial aid provided to students and scholars who face economic constraints. One of the organizations that offers scholarships is the National Amil Zakat Agency (Baznas). The selection process for Baznas scholarship recipients requires a data classification system to assist in the decision-making process. This research aims to analyze the classification results and determine the most optimal level of accuracy. The method used in this research is the k-nearest neighbor. The classification results using k=22 on 41 testing data obtained 37 accurately classified data and 4 misclassified data. Out of the 37 accurately classified data, 17 are students receiving Baznas scholarships, and 20 are students not receiving Baznas scholarships, with the most optimal accuracy rate of 90% (excellent classification).ABSTRAKBeasiswa merupakan bantuan biaya pendidikan yang diberikan kepada siswa maupun mahasiswa yang terkendala secara ekonomi. Salah satu pihak yang memberikan beasiswa adalah Badan Amil Zakat Nasional (Baznas). Proses penyeleksian penerima beasiswa Baznas membutuhkan sistem pengklasifikasian data untuk membantu proses pengambilan keputusan penerima beasiswa Baznas. Penelitian ini bertujuan menganalisis hasil klasifikasi dan mengetahui tingkat akurasi paling optimal. Metode yang digunakan pada penelitian ini yaitu k-nearest neighbor. Hasil klasifikasi menggunakan k=22 pada 41 data testing diperoleh 37 data tepat klasifikasi dan terdapat 4 data tidak tepat klasifikasi. Dari 37 data tepat klasifikasi terdapat 17 data mahasiswa menerima beasiswa dan 20 data mahasiswa tidak menerima beasiswa Baznas dengan tingkat akurasi paling optimal 90% (excellent classification).
Peramalan Jumlah Permintaan Tepung Terigu pada Bahan Baku Roti Menggunakan Metode Triple Exponential Smoothing Brown di Usaha Roti Anggun Farhati, Nia Awra; Murni, Dewi
Journal of Mathematics UNP Vol 8, No 4 (2023): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v8i4.14558

Abstract

Wheat flour is the main raw material in making bread. The amount of demand for wheat flour at Usaha Roti Anggun comes from distributors which will affect the amount of bread production. The purpose of this study is to form a forecasting model for the amount of demand for wheat flour in bread raw materials at Roti Anggun Business using the Brown type triple exponential smoothing method and forecast the amount of demand for wheat flour based on the model formed. The forecasting method used is Brown's Triple Exponential Smoothing with the parameter α which minimizes the MSE is 0.42. The results of forecasting the total demand for wheat flour at Usaha Roti Anggun with the equation model
Analisis Kestabilan dan Kontrol Optimal pada Model Matematika Radikalisasi Wahyuni, Siska; Murni, Dewi
Journal of Mathematics UNP Vol 9, No 1 (2024): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v9i1.15664

Abstract

Radicalization is a process of adopting extremist views that lead to violent acts. Efforts that can be made to eradicate extreme violence are prevention, disengagement and deradicalization. This study aims to determine the mathematical model of radicalization using the susceptible, extremists, recruiters, treatment and Aware model (SERTA),   and to obtain stability analysis results and optimal control of the model. This is a fundamental or theoretical study. According to the model analysis, there are two equilibrium points namely the free and endemic equilibrium points. The stability analysis of the system resulted in a basic reproduction number of 0,012297 for the equilibrium point free and 1,339847 for endemic. The use of Pontryagin’s maximum principle will produce optimal control value is obtained, namely:(u_1 ) ̇=min{1,maks(0,1/c_1  (λ_1-λ_5 )S)},(u_2 ) ̇=min{1,maks(0,1/c_2  [(〖2λ〗_2-λ_4-λ_5 )E+(λ_3-λ_4 )R])},(u_3 ) ̇=min{1,maks(0,1/c_3  (λ_2-λ_5 )δT)}.Numerical simulations show that providing u_1, u_2 and u_3 controls can minimize the number of extremist and recruiter populations and minimize the aware population.
Pengelompokan Kabupaten/Kota di Provinsi Sumatera Barat Berdasarkan Sebaran Tingkat Pengangguran Menggunakan Metode Density Based Spatial Clustering Applications with Noise Oktaviani, Difitria; Murni, Dewi
Journal of Mathematics UNP Vol 9, No 4 (2024): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v9i4.16734

Abstract

Jumlah penduduk dan partisipasi angkatan kerja di Provinsi Sumatera Barat mengalami peningkatan pada tahun 2022. Namun, juga terjadi ketidakseimbangan antara jumlah pencari kerja dan lowongan kerja. Hal ini mengakibatkan naiknya angka pengangguran di Provinsi Sumatera Barat. Penelitian ini bertujuan untuk mengelompokkan kabupaten/kota di Sumatera Barat berdasarkan tingkat pengangguran menggunakan metode Density Based Spatial Clustering Applications with Noise, dan validasi cluster dengan metode evaluasi silhouette coefficient. Berdasarkan hasil pengelompokannya diperoleh dua cluster dan satu noise. Secara keseluruhan, dengan metode ini diperoleh hasil validasi cluster sebesar 0,50 yang berarti kategori struktur cluster yang baik.
Optimasi Produksi Roti Menggunakan Algoritma Affine Scaling Di Olivia Bakery azilah, nur; Murni, Dewi
Journal of Mathematics UNP Vol 9, No 4 (2024): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/unpjomath.v9i4.16726

Abstract

Olivia Bakery is a business specializing in the production of sweet bread in various flavors. Currently, the bakery faces challenges in production planning, as it struggles to determine the optimal number of breads to produce for each variant based on the availability of raw materials. The objective of this study is to formulate a mathematical model that incorporates the constraints of raw material availability, production time, and market demand to determine the optimal production quantities and maximize profits. This problem is addressed using an optimization approach with the Affine Scaling Algorithm. The research is categorized as applied research and utilizes both primary and secondary data obtained through observation and documentation. The results of the analysis show that the use of the Affine Scaling Algorithm generates a profit of Rp 635,117.00, compared to the average normal profit of approximately Rp 497,888.00. Therefore, this method proves to be more effective in increasing the company's profitability.
Co-Authors Almaretha, Lola AM, Rusydi Amaruddin Amaruddin, Amaruddin Ananta Siregar, Yusril Anis Khoerunisa, Anis Antonny, Elfrida Ardiani Sulistiani Arif , Yulastri Arif, Yulastri Arzuf, Tania - Azhari Siregar, Ari azilah, nur Basyuni, Maftuh Danti Nasution, Rima Dhelfiariani, Bestia Dwi Ratnasari Dwi Salmarini, Desilestia Dwina, Fitrani Emily, Emily Erawati, Sisri Ernawati, Eti Farhati, Nia Awra Fiddian khairudin Fridgo Tasman Fuadi Dharma Harahap, Andes Galingging, Elizabeth Septiani G. Br Gianti, Ridhoul Wahidi Habibah, Rizka Hafni Bachtiar harahap, erna Helma Helma Hendra Hendra Heri Enjang Syahputra Hestiaty Hevardani, Kelly Angelly Hidayah, Zhiratul Hodijah, Siti Romlah Noer Husein Batubara, Rahmad Ilfa Khairina Indra Saputra Ira Mulya Sari Irawan, Angga Jamaris Jamaris Jamil, Mohd Junaidi Junaidi Khairani, Sabilla Khairuddin, fiddian khairudin, Fiddian Komariah, Nur Kurniawan Kurniawan M. Januar Ibnu Adham Ma’mum, Nurcholish Mahadur, Mahadur Mahfudz, Ali Maimunah, Maimunah Maisa, Esthika Ariany Mar’atus Sholihat, Aah Marwan Marwan Marwiyah, Leli Ma’mum, Nurcholish Mila Ermila Hendriyani, Mila Ermila Mirna Mirna Muh. Darwis Muhammad Farhan Munawaroh, Emun Munirah Muthmainnah Muthmainnah Nariyah Nasrullah Nasrullah Nasrullah Nelwati, Nelwati Nency, Aprilya Nita Hestiyana, Nita Noer Hodijah, Siti Romlah Nugrahini, Asadila Pratama Wuri Nur Anisa, Herlina Nurfadillah, Alfira Laila Nurmaini Ginting Nurul Hasanah Oktaviani, Difitria Oxyandi, Miming Pangastuti, Kharisma Diani Pertiwi, Monica Pratama, Vina Risky Ayu PURWANTI, WIWIT Puteri, Zifriyanthi Minanda Putri Diana Putri, Zifriyanthi Minanda Rahma W, Nova Rahman, Aris RAMADHANI, SALSABILA RATNAWATI Rhomiy Handican Ria Sudiana, Ria Rida Oktorida Khastini Ridhoul Wahidi Ridhoul Wahidi Riki Saputra, Riki Rini, Ageng Septa Rizky Ariaji, Rizky Rizky Rahayu, Silvi Rohani Daulay, Wilda Ruhiat, Ruhiat Sabarudin Sabarudin Sab’ngatun, Sab’ngatun Sahlan Mujtaba Samosir, Hottua Santi Nurul Hayatullah, Tri Saputri Julida Sari, Shinta sartika, Mira Sasmita, Happi Seubelan, Sartiny Sidaria, Sidaria Simanjuntak, Ronaldi Simond, Martha Siraj Siraj Siregar, Hariman Siregar, Mahmudin Siti Komariah Sofyan Sulaiman Solehat, Solehat Solfema Sri Wijayanti Sumarsih, Gusti Sumiati, Iis Suriyah, Suriyah Susmiati Susmiati Syafril Syafril Syafril Syari Batubara, Melvariani Syofrianisda, Syofrianisda Ubudiah, Ikhlas Wahyuni, Siska Warisman Nasution, Irhanuddin Yanthi Yanthi Yarman Yarman, Yarman Yerizon Yerizon Yuningsih, Endang Zahra, Chairunnisa Az Zain, Wardinatul Zakiyah Zulfitra, Aldi