📘 time series analysis

1. **Problem Statement:** We are given monthly U.S. gasoline sales data from January 2020 to December 2021 and asked to evaluate a seasonally adjusted trend forecasting model. Spec

1. The problem is to understand the methodology of the ARIMA (AutoRegressive Integrated Moving Average) model used in time series forecasting. 2. ARIMA models are used to analyze a

1. **Problem Statement:** We have quarterly sales data for years 2005 to 2008 and need to:

1. **Problem Statement:** We have quarterly sales data (in millions) for years 2005 to 2008. We need to:

1. **Understand the data and problem:** We have quarterly sales (in thousands) for 3 years (2022-2024): \n| Year | Q1 | Q2 | Q3 | Q4 |