ANALISIS PERBEDAAN PENGARUH KELOMPOK PENGELUARAN TERHADAP INFLASI DI PROVINSI BANTEN MENGGUNAKAN RANCANGAN ACAK KELOMPOK (RAK) DENGAN UJI LANJUT DUNCAN

Abstract

Inflation is an important indicator in describing the economic stability of a region. Differences in consumption patterns and price sensitivity cause inflation fluctuations between expenditure groups. This study aims to analyze the influence of expenditure groups and months on inflation values ​​and identify significant differences between groups and months using Duncan's advanced test. The study used a Randomized Block Design (RBD) with inflation values ​​as the response variable, seven expenditure groups as treatments, and January–June as groups. Data analysis was performed using analysis of variance (ANOVA) and Duncan's test. The ANOVA results showed that expenditure groups significantly influenced inflation with . The month factor also had a significant effect with . The Duncan test results showed that the Food, Beverages, and Tobacco group had the highest average inflation of 1.825 and was significantly different from the other groups. In the month factor, March was significantly different from January and February, while April was significantly different from January. Therefore, expenditure groups and months significantly influenced inflation values.

Keywords: Analysis of Variance (ANOVA), Duncan's Advanced Test, Expenditure Group, Inflation, Randomized Block Design (RBD)