Description :The Statistics Polytechnic of STIS held the first of four Statistics Webinar Series, each with four different themes. The events, held using Zoom and YouTube, aimed to increase statistics literacy for all groups, including academics, professionals, and the general public.
The first Statistics Webinar Series was held on Wednesday (June 10th) with the theme "Fundamentals of Hypothesis Testing." The first series featured the Director of the Statistics Polytechnic of STIS (Dr. Erni Tri Astuti, M.Math) as a resource person, and was moderated by Agung Priyo Utomo, S.Si, M.T. The speakers explained the basic concepts of hypothesis testing and decision-making in a sequential manner. The explanations covered non-statistical hypothesis testing, statistical hypothesis testing, statistical modeling, inferential statistics, and the Power of Test Function. Participants responded positively to the speakers' detailed and easy-to-understand explanations. This first series attracted over 10,000 viewers.
The second series of the Statistics Webinar Series, "Sampling and Survey Methodology," was held on Friday (June 12th). This second series featured a theme rarely encountered in other seminars, especially since sampling is an essential part of life. Moderator Achmad Praseto, S.Si., M.M., explained examples of sampling in everyday life, which was then further discussed by the resource person, Dr. Azka Ubaidillah, M.Si. The resource person explained the concepts using a simple schema, starting with the basic understanding of sampling, sampling methods, and data collection methods. He also explained basic concepts including the differences between accuracy, efficiency, and precision. The resource person provided easy-to-understand illustrations of Big Data, which received many positive comments from participants. This second series of webinars was deemed highly targeted for academics with both statistical and non-statistical backgrounds.
The Statistics Webinar Series returned on Saturday (June 20th) with the theme "Statistical Methods (ANOVA, MANOVA)." This third series featured Dr. I Made Arcana, M.Sc., served as the resource person, moderated by Siskarossa Ika Oktora, SST, M.Stat., and explained ANOVA, an analysis of variance (ANOVA), which is used to determine the ratio of variation within and between groups. Furthermore, the resource person explained the types of ANOVA, including one-way ANOVA, two-way ANOVA, and two-way ANOVA with replication. He also explained the relationship between ANOVA and the t-test. The resource person emphasized that both serve the same purpose; the difference is that if more than two populations are used, ANOVA is preferable to avoid errors in testing. The resource person further discussed an extension of ANOVA, MANOVA (Multivariate ANOVA). The difference between the two lies in the response variable used.
The fourth and final installment of the first phase of the Statistics Webinar Series discussed "Fundamentals of Time Series Data Analysis" on Saturday (June 27th). This webinar featured Dr. Budiasih, B.St., M.E. served as a resource person and was moderated by Anugerah Karta Monika, S.Si., M.E. The resource person explained the basic concepts of time series in a detailed and easy-to-understand manner. She also discussed various time series analysis methods used in various studies, such as ARMA, ARIMA, ECM (Error Correction Mechanism), and VAR (Vector Autoregressive). This webinar was attended not only by domestic participants but also by international participants.
With the conclusion of the fourth series, the first phase of the Statistics Webinar Series also concluded. Given the high enthusiasm of participants and the positive feedback received during the Statistics Webinar Series, this event is planned to be held regularly, given the numerous benefits received by participants from various backgrounds. (Dini_60).
