Forecasting the Consumer Price Index in Bandar Lampung Using the Autoregressive Integrated Moving Average (ARIMA) Model: An Applied Statistics Context for Mathematics Education
The Consumer Price Index (CPI) is a key economic indicator for monitoring changes in household consumption prices and supporting inflation assessment, making accurate short-term forecasting important for regional economic planning. This study aims to analyze the historical pattern of the CPI in Bandar Lampung, identify...