In the analysis of time series data, it is frequently of interest to compare a set of forecasts made at some time point when a change in level is suspected to have taken place with actual observations. This paper discusses various statistical techniques for making such comparisons, and illustrates these techniques in terms of an actual example concerning the monthly averages of atmospheric ozone concentration of Azusa, California. This particular comparison is of interest because of new automobile emissions standards that were introduced at the end of 1970. These measures might have reduced ozone below levels expected if no new standards had been introduced.
Comparison of forecasts and actuality
Vergleich zwischen Prognose und dem tatsaechlichen Zustand
US Government Reports ; 1-23
1975
23 Seiten
Report
Englisch
The elements of crashworthiness:scope and actuality
Kraftfahrwesen | 1990
|The Elements of Crashworthiness: Scope and Actuality
SAGE Publications | 1990
|The elements of crashworthiness: scope and actuality
Tema Archiv | 1990
|Hypersonic actuality - NASP team turns to missile testing
Online Contents | 1993
The Trend and Actuality of Hybrid Power Loaders
Tema Archiv | 2014
|