Statistical methodology: V. Time series analysis using autoregressive integrated moving average (ARIMA) models

Most methods of defining a statistical relationship between variables require that errors in prediction not be correlated. That is, knowledge of the error in one instance should not give information about the likely error in the next measurement. Real data frequently fail this requirement. If a Durb...

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Bibliographic Details
Published inAcademic emergency medicine Vol. 5; no. 7; pp. 739 - 744
Main Author Nelson, B K
Format Journal Article
LanguageEnglish
Published United States 01.07.1998
Subjects
Analysis of Variance
Emergency Medical Services - statistics & numerical data
Emigration and Immigration - legislation & jurisprudence
Health Services Needs and Demand - statistics & numerical data
Mexico - ethnology
Models, Statistical
Regression Analysis
Texas
Time Factors
United States
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Summary:Most methods of defining a statistical relationship between variables require that errors in prediction not be correlated. That is, knowledge of the error in one instance should not give information about the likely error in the next measurement. Real data frequently fail this requirement. If a Durbin-Watson statistic reveals that there is autocorrelation of sequential data points, analysis of variance and regression results will be invalid and possibly misleading. Such data sets may be analyzed by time series methodologies such as autoregressive integrated moving average (ARIMA) modeling. This method is demonstrated by an example from a public policy intervention.
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ISSN:1069-6563
DOI:10.1111/j.1553-2712.1998.tb02493.x