Abstract #300851

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JSM 2003 Abstract #300851
Activity Number: 76
Type: Topic Contributed
Date/Time: Monday, August 4, 2003 : 8:30 AM to 10:20 AM
Sponsor: Section on Survey Research Methods
Abstract - #300851
Title: Investigation of Alternative Replicate Variance Estimators for the Annual Capital Expenditures Survey
Author(s): Katherine J. Thompson*+ and Richard S. Sigman and Roger Goodwin
Companies: U.S. Census Bureau and U.S. Census Bureau and U.S. Census Bureau
Address: 2700 Karen Dr., Chesapeake Beach, MD, 20732-3841,
Keywords: random group ; delete-a-group jackknife ; sampling fraction
Abstract:

The Annual Capital Expenditures Survey (ACES) is a one-stage stratified simple random sample of companies, and sampling fractions in several strata are larger than 0.20. The ACES adjusts for nonresponse by adjusting sampling weights: in some strata based on response rates and in other strata based on an auxiliary variable. We investigate two replicate-variance methods (random group and delete-a-group jackknife) with three variations of replicate weighting per method (six different replicate methods total). Our replicate-variance estimates include specific adjustments for the non-negligible sampling fractions. We compare the six different replicate-variance estimates to the currently used sampling theory formula variance estimates using both empirical and simulated data. Finally, we discuss some of the disadvantages of direct replication of combined ratio and year-to-year trend estimates over Taylor methods for simple and stratified SRS-WOR designs that have nonnegligible sampling fractions.

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