Glory C. Nwagwu

Comparison of the Power of Tests for Detecting Seasonality in Time Series with Linear and Quadratic Trends

Kelechukwu C.N Dozie, Stephen O. Ihekuna & Glory C. Nwagwu · Asian Journal of Advanced Research and Reports · 2026

This paper discusses some tests of seasonality in time series data. The emphasis is to compare the powers of three tests in the detection of the presence seasonal effects in time series data using stimulated example. The parameters of the trending curves (linear and quadratic) ar...