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Research Article Open access CC BY 4.0

Decomposition with the Additive Model with Exponential Trend Curve and Detection of Seasonal Effect in Descriptive Time Series

Kelechukwu C. N. Dozie, Stephen O. Ihekuna

Journal of Engineering Research and Reports · pp. 166–175 · Published 16 Aug 2023

10.9734/jerr/2023/v25i7950

Abstract

This article examines decomposition with the additive model. The procedure of decomposition has involved the four basic components and requires a method that can adequately estimate and investigate the trend parameters, seasonal indices and residual component of the series. This article also consider test for seasonality in the additive model with exponential trend curve. The test is applied to the row and overall sample variances of the Buys-Ballot table to detect the presence of seasonal indices in time series.

Buy-Ballot method addive model successful transformation row variance overall variance exponential trend curve

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Cited by 3

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