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All Journal Jurnal Sosial Humaniora Sigli Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika
Mirunnisa, Mirunnisa
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Decision Sciences, Operations Research & Management Education Environmental Science Mathematics Social Sciences Other

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PERAMALAN NILAI TUKAR PETANI PROVINSI ACEH: DITINJAU DENGAN METODE DOUBLE EXPONENTIAL SMOOTHING DAN HOLT WINTER Razi, Zulfa; Mirunnisa, Mirunnisa; Maryanti , Maryanti; Nurhayati, Nurhayati
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 5 No. 2 (2024): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v5i2.703

Abstract

This research aimed to compare the performance of the Double Exponential Smoothing and Holt-Winter methods in forecasting the Farmer Exchange Rate (NTP) for the Horticulture Farmer Subsector in Aceh Province. Secondary data on the NTP for the Aceh Horticulture Subsector from 2020-2023 was obtained from the Aceh Provincial Central Statistics Agency (BPS) website. The data processing was carried out using the R software. The results showed that the Double Exponential Smoothing method had a Root Mean Squared Error (RMSE) of 3.413201, a Mean Absolute Percentage Error (MAPE) of 2.85835, and a Mean Percentage Error (MPE) of -0.5980113. Meanwhile, the Holt-Winter's Additive method had an RMSE of 4.055652, a MAPE of 3.055992, and an MPE of 0.2534276. The best forecasting method was selected based on the smallest RMSE, MAPE, and MPE values, which was Double Exponential Smoothing. The 12-month forecast using the Double Exponential Smoothing method indicated that the lowest NTP would occur in January 2024 at 106.7195, while the highest NTP would be in December 2024 at 113.6443
MEDIA PEMBELAJARAN BERBASIS SOFTWARE MICROSOFT MATHEMATICS DALAM PEMBELAJARAN ALJABAR UNTUK MENINGKATKAN SELF-EFFICACY SISWA SMP NEGERI 1 SAKTI Taufiq, Taufiq; Junaidi, Junaidi; Mirunnisa, Mirunnisa
Jurnal Sosial Humaniora Sigli Vol 7, No 1 (2024): Juni 2024
Publisher : Universitas Jabal Ghafur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47647/jsh.v7i1.2432

Abstract

This research contains learning media based on Microsoft Mathematics software. The research contains algebra learning to increase the self-efficacy of class IX students at SMP Negeri 1 Sakti. The main focus of this research is increasing students' self-efficacy by utilizing learning media based on Microsoft Mathematics software. The population that was the research subject included all class IX students at SMP Negeri 1 Sakti, totaling 210 students. Because the population exceeded 100 students, two classes were chosen as samples, namely one experimental class and one control class, each consisting of 60 students. This research adopts a quasi-experimental method. Data was collected through post-tests and self-efficacy questionnaires, then analyzed using the t-test. The results of data analysis show that the average score for the experimental class is 80.13, while the control class has an average of 70.04. The results of hypothesis testing show tcount ttable 2.703 1.701. Thus, software-based learning media in the learning context, Microsoft Mathematics, can increase students' self-efficacy in algebra material in class IX of SMP Negeri 1 Sakti. ABSTRAKPenelitian ini berisi tentang media pembelajaran berbasis software Microsoft Mathematics, dalam penelitian memuat pembelajaran aljabar untuk meningkatkan self-efficacy siswa kelas IX di SMP Negeri 1 Sakti, fokus utama penelitian ini adalah meningkatkan self-efficacy siswa dengan memanfaatkan media pembelajaran berbasis software Microsoft Mathematics. Populasi yang menjadi subjek penelitian termasuk semua siswa kelas IX di SMP Negeri 1 Sakti yang berjumlah 210 siswa. Karena jumlah populasi ini melebihi 100 siswa maka di pilih dua kelas sebagai sampel, yakni satu kelas eksperimen dan satu kelas kontrol, dengan masing-masing terdiri dari 60 siswa. Penelitian ini mengadopsi metode kuasi-eksperimen. Data dikumpulkan melalui tes akhir dan kuesioner self-efficacy, lalu dianalisis menggunakan uji-t. Hasil analisis data menunjukkan bahwa nilai rata-rata kelas eksperimen adalah 80,13, sementara kelas kontrol memiliki rata-rata 70,04. Hasil pengujian hipotesis menunjukkanthitung ttabel 2,703 1,701. Dengan demikian media pembelajaran berbasis software dalam konteks pembelajaran, Microsoft Mathematics dapat meningkatkan kepercayaan diri siswa materi aljabar di kelas IX SMP Negeri 1 Sakti.
Co-Authors Junaidi Junaidi Maryanti , Maryanti Nurhayati Nurhayati Taufiq Taufiq Zulfa Razi