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Prediksi Jumlah Pasien Positif Covid-19 Di Indonesia Menggunakan Model Berbasis Spasio Temporal GSTAR Orde Satu Maisuri Maisuri; Asrirawan Asrirawan; Ahmad Ansar
Seminar Nasional Official Statistics Vol 2021 No 1 (2021): Seminar Nasional Official Statistics 2021
Publisher : Politeknik Statistika STIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.471 KB) | DOI: 10.34123/semnasoffstat.v2021i1.1088

Abstract

Coronavirus Disease 2019 (COVID-19) is a pandemic disease that has not been previously identified in humans. The virus that causes COVID-19 is called Sars-CoV-2. And this corona virus is zoonotic (transmitted between animals and humans). The spread of COVID-19 can be through droplets (small particles) when someone talks or sneezes, air, and contaminated surfaces. So that the main factors causing the increase in COVID-19 include increased movement, activity, and interaction of the population, such as activities in public transportation and the workplace, then the new variant factor of COVID-19 and the linkage in the previous time. The process of spreading from one location to another (transmission) involves a spatial process. The COVID-19 time series data can be modeled with the spatio-temporal-based GSTAR model on 3 islands in Indonesia, namely Java Island and Sulawesi Island. The weight used in this study is the inverse distance weight with the appropriate GSTAR model being GSTAR (1,1). The forecast level of the GSTAR model for all testing and training data with Inverse Distance weights which has the smallest RMSE is in the GSTAR model for Location Java, which is 0.40255. Meanwhile, the forecast for the GSTAR model which has the largest RMSE value is Sulawesi Island, which is 1.616303.
PENGARUH ADVERTISING, PERSONAL SELLING DAN SALES PROMOTION ATAS KEPASTIAN PEMBAYARAN PRODUK SEMEN PADANG DI KOTA MEDAN Laili Heri Yanti; Maisuri Maisuri; M. Refadhil Alfarizy
Jurnal Intelek Insan Cendikia Vol. 1 No. 10 (2024): Desember 2024
Publisher : PT. Intelek Cendikiawan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Di tengah  persaingan pasar yang ketat, para pelaku bisnis perlu menggunakan berbagai strategi pemasaran untuk menarik perhatian konsumen.Penelitian ini mengetahui bagaimana dampak periklanan, penjualan personal, dan promosi penjualan atas kepastian pembayaran produk Semen Padang di Kota Medan. Melalui pendekatan  ini, kami berupaya memahami bagaimana ketiga faktor tersebut mempengaruhi konsumen untuk memilih Semen Padang dibandingkan produk lainnya. Hasil penelitian memperlihatkan jika iklan yang kreatif dan menarik mampu meninggalkan kesan positif di benak konsumen. Sementara itu, penjualan personal yang dilaksanakan tenaga penjual yang ramah dan memiliki kemampuan komunikasi yang baik dapat meningkatkan kepercayaan konsumen terhadap produk. Tak kalah pentingnya, promosi dengan berbagai penawaran menarik meningkatkan kemauan konsumen untuk membeli. Oleh karena itu, dapat dikatakan bahwa kombinasi ketiga strategi tersebut sangat berperan penting dalam  kepastian pembayaran konsumen  Medan.