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Pengaruh Harga Produk dan Layanan Terhadap Inflasi di Kabupaten Deli Serdang Menggunakan Metode Rancangan Acak Kelompok Lengkap (RAKL) Achmad Fajri Romadhoni; Ayu Widya Sari; Ega Ananda br Sembiring; Ishak Munawar; Sudianto Manullang; Putri Maulidina Fadilah
Interdisciplinary Explorations in Research Journal Vol. 2 No. 3 (2024)
Publisher : PT. Sharia Journal and Education Center

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Abstract

This research explores the influence of product and service prices on the inflation rate in Deli Serdang Regency, using the Complete Randomized Block Design (RAKL) method. The data used includes the inflation rate of eight categories of goods and services reported by the Central Statistics Agency during the period January to June 2024. The results of variance analysis show that neither the goods/services category factor nor product prices have a significant influence on the inflation rate in the research period. This study provides initial insight into the relationship between prices and inflation and opens up opportunities for further research with broader data coverage and additional variables.
Penerapan Rancangan Acak Lengkap dalam Penilaian Cara Mengajar (Studi Kasus: Jurusan Matematika FMIPA Unimed) Dewi Lowisa Br Purba; Indah Febriani Sagala; Nagita Adella; Reski Augustian. S; Sudianto Manullang; Putri Maulidina Fadilah
Interdisciplinary Explorations in Research Journal Vol. 2 No. 3 (2024)
Publisher : PT. Sharia Journal and Education Center

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Abstract

This research aims to evaluate the effectiveness of lecturers' teaching methods in the Mathematics Department, FMIPA, Medan State University (Unimed) using a Completely Randomized Design (RAL) approach. This method allows controlled testing of variability between groups of students, with a sample of 60 students selected at simple random. Data was collected through a questionnaire that measured student perceptions of teaching methods, followed by analysis using ANOVA. The research results show that the teaching methods applied have a significant influence on student learning outcomes, with differences between groups detected through statistical tests. This research provides recommendations for adopting more effective teaching methods in improving the quality of education in the academic environment.
Analisis Rata-Rata Pengeluaran Makan Siang Mahasiswa Prodi Statistika-24 Universitas Negeri Medan Menggunakan Teknik Simple Random Sampling Dwi Heri Efrilia; Feby Florensia Stepahni Sihotang; Josafath Artur Situngkir; Putri Maulidina Fadilah; Sudianto Manullang
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.1280

Abstract

Pengeluaran makan siang merupakan bagian penting dari kebutuhan harian mahasiswa, terutama bagi mahasiswa perantau yang harus mengatur keuangan secara mandiri. Penelitian ini bertujuan untuk menganalisis rata-rata pengeluaran makan siang mahasiswa Program Studi Statistika 2024 di Universitas Negeri Medan. Metode yang digunakan dalam pengambilan sampel adalah Simple Random Sampling (SRS), yaitu setiap anggota populasi memiliki peluang yang sama untuk terpilih menjadi sampel. Populasi sebanyak 83 orang dengan sampel sebanyak 69 responden. Data yang dikumpulkan didapatkan dari wawancara secara langsung dan dengan kuesioner online yang disebarkan kepada responden secara acak. Hasil penelitian menunjukkan bahwa terdapat variasi dalam pengeluaran makan siang mahasiswa yang dipengaruhi oleh beberapa faktor seperti pilihan tempat untuk makan, kebiasaan konsumsi, dan kondisi ekonomi masing-masing mahasiswa yang berbeda-bedan. Penelitian ini diharapkan dapat menjadi dasar dalam memahami pola konsumsi mahasiswa serta memberikan masukan bagi pihak kampus dalam merancang kebijakan atau program yang mendukung kesejahteraan mahasiswa.
Analisis Kesulitan Mahasiswa Program Studi Statistika Angkatan 2024 Universitas Negeri Medan Dalam Mengerjakan Tugas Mini Riset Aisyah Novianti; Elisabeth Putri Dayanti; Emily Theresia Silaen; Nia Rizkita Tambunan; Sudianto Manullang; Putri Maulidina Fadilah
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.1324

Abstract

Students of the Statistics Study Program often face difficulties in completing mini research projects, which are an essential part of project-based learning. This study aims to analyze the difficulties experienced by Statistics students at Universitas Negeri Medan (UNIMED), specifically the 2024 cohort, in conducting their mini research assignments. A descriptive quantitative approach was used. Data were collected through questionnaires and interviews, with 69 students selected using a simple random sampling technique. The questionnaire instrument was tested for validity and reliability. The results showed that all items were valid, and the reliability coefficient of 0.753 indicated that the instrument was consistent and reliable. The analysis revealed that students primarily struggled with understanding statistical concepts, processing data using statistical software, and writing structured research reports. These findings highlight the need for additional guidance in both methodological and technical aspects of mini research. This study is expected to serve as an evaluation reference for lecturers and study programs to improve the quality of research-based learning in higher education. Keywords: Learning Difficulties, Mini Research, Statistics Students, Validity, Reliability.
Co-Authors Abdurahman Abdurrahman Achmad Fajri Romadhoni Adiva, Cut Tasya Adrianto, Ilham Agnes Yulia Saragih Aisyah Novianti Alvi Sahrin Nasution Ameliya, Ameliya Anastasya Carity S, Disty Angelica Carolina Tambunan Anggi Nur Ananda Saragih Annisa Hidayah Anshari, Farhan Aqil, Muhammad Fachri Aritonang, Anggi Pasha Arnita Arnita Aulia Putri Br. Manurung Aulia, Ilmi Aulia, Widi Ayu Lestari Sihombing Ayu Widya Sari Azizi, Muhammad Farhan Azmi, Khoiriyati Bakti Ulina Lumbangaol Botrina Adisti Simangunsong Br Barus, Jesika Casadae Wanda Cahaya Destia Regar Cahya Chosya Carles Syahputra Hulu Cecilia Br Parangin-angin Chairunisah Chairunisah, Chairunisah Chandra, Melissa Christine Simatupang Clara Jocelyn Harefa Dani, Danu Rama Desrinawati Tindaon Dewi Lowisa Br Purba Diah Ayu Lestari DIdi Febrian Dilla Nurfadiah Dimas Arza Nugraha Dinda Meyliana Dinda Putri Namira Harahap Dita Aryani Dwi Heri Efrilia Ega Ananda Br Sembiring Eldora, Felicia Elisabeth Putri Dayanti Emily Theresia Silaen Erlinawaty Simanjuntak Fachrihz Effendy Fadilah, Putri Maulidina Fannisa Rahmadani Febi Hijriana Feby Florensia Stepahni Sihotang Felicia Eldora Femi Ezrani Siantur Ginting, Puspa Arinda Ginting, Sindi Rahmadhani Gultom, Ledy Meva Tiurma Hanafi Irsyad Pulungan Handayani, Silvia Mariah Handre Gabriel Pinem Hanifah Rusydah Hasibuan, Eka Sri Hartini Hasibuan, Valen Silvana Hutabarat, Reinaldo F.M Hutabarat, Reinaldo Fernandes Matheus Hutapea, Brian Hutasoit, Elizabeth Indah Febriani Sagala Ira Selvia Ritonga Irvina Abelia Harahap Ishak Munawar Ivena Simanjuntak Josafath Artur Situngkir Kairani, Nerli Kanaya, Nayla Yasyra Kanaya, Niquita Sepha Karin Aulia Putri Kasih Simbolon Khoiriyati Azmi Lirana Sapriani Gulo Lubis, Hafiz Khalik Lubis, Raja Harly Anugrah Lubis, Revan Kurniawan Lubis, Rhamanda Ardiyansyah M. Fajar Alif M. Shadri Ismaun Lubis M.E. Ernawati Siregar Manihuruk, Oliver Juan Manihuruk, Oliver Juan Gery Manullang, Maria Ayuni Isabella Manullang, Nurul Ain Farhana Melissa Chandra Mizan Hasibuan Muthiah, Ade Naila N Simanjuntak, Christina Nadya, Fauza Nagita Adella Nainggolan, Millenia Naomi Febrina Sitompul Nasution, Alvi Sahri Nasution, Alvi Sahrin Nasution, Tri Annisya Aini Nia Devi Friskauly Nia Rizkita Tambunan Niska, Debi Yandra Nova Oktavia Sitinjak Novan Setyadi Nur Maulidya Rizky Nurhasanah - Siregar Nurjannah, Annisa Nurkhalizah, Rezeki Nursani Salsabillah Akza Nurul Ain Farhana Nurul Ain Farhana Panggabean, Natanael Pardomuan - Sitompul Pasaribu, Jansperi Pebrianti, Lidia Piliang, Yumna Khairi Amani Pulungan, Zakiy Maulana Purba, Rut Omega Putri Aisyah Putri Maulidina Fadilah Putri Maulidina Fadilah Raihan Riyadi Siregar Reski Augustian. S Revan Kurniawan Lubis Rifka Annaria Sibuea Rini Sartika Risa Rozzaqi Rambe Rotua Evelyn Tesalonika Sinambela Said . Iskandar Saragih, Agnes Yulia Saragih, Anggi Nur Ananda Saribu, Fransisco Dolok Siagian, Yerikho Aprilio Siahaan, Daniel Tingkos Sianturi, GiaColin Alfaro Samuel Sibarani, Mikhael Agus Tua Siboro, Alio Hutaperi Sihombing, Sri Yuni Utari Silaban, Dewi Fortuna Simamora, Elmanani Simanjuntak, Christina N Simanjuntak, Natalia Anggriani Simbolon, Taing Pebrieni Simorangkir, Tri Gustini Sinaga, Marlina Setia Sisti Nadia Amalia Sitanggang, Agnes Miranda Sitanggang, Santa Falare Sitorus, Novita Atika Situmorang, Audrey Situmorang, Ruth Remita Asianna Talitha Nakhwan Hasibuan Tamara, Angga Tambunan, Combest Prajogo Tarigan, Dandi Rifa'i Taufiq, Insan Tia Ramadani Tobing, Rizky Saputra Tri Annisya Aini Nst Tumanggor, Abednego Pradja Turnip, Leoni Fristy Wahyu Indra Syahputra Wibowo, Anastasya Putri Widi Ningsih Panggabean Widya Narti Lubis Witri Wardani Hulu Yoan Olivia Sirait Yolanda Ulyartha L. Tobing Zalianti, Retno Ayu Zulfahmi Indra, Zulfahmi