A project to build an end-to-end ARIMAX forecasting model for Ghana's government expenditure in R — covering stationarity testing, multicollinearity diagnostics, model selection, and 10-year fiscal forecasts. Full reproducible analysis on GitHub. [https://raw.githubusercontent.com/Gershom-Tetteh-Amanor/ARIMAX-ANALYSIS-PROJECT/refs/heads/main/ARIMAX_GHANA_FULL_THESIS.Rmd]

Results of monthly lab testing of 18 streams in Story County, Iowa