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1979-80-Census Seasonal Adjustment Project: Final Report on Research Activities

Written by:
RR80-01

Introduction

The Census X-11 seasonal adjustment method is a widely used procedure that has been difficult to understand from a theoretical point of view. In an attempt to understand how X-11 might fit into the statistical framework of signal extraction, Cleveland and Tiao (1976) found an ARIMA model for the observed unadjusted series for which the standard options of X-11is appropriate.

Page Last Revised - October 28, 2021
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