JSM 2004 Online Program

Abstract #300731

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Activity Number:	372
Type:	Topic Contributed
Date/Time:	Wednesday, August 11, 2004 : 2:00 PM to 3:50 PM
Sponsor:	Biometrics Section
Abstract - #300731
Title:	Sequential Testing in the Agricultural Sciences
Author(s):	Linda J. Young*+
Companies:	University of Florida
Address:	Statistics Dept., College of Medicine, Gainesville, FL, 32610-0212,
Keywords:	SPRT ; 2-SPRT ; ecological models ; binomial ; negative binomial
Abstract:	Sequential procedures have been used to help make management decisions concerning control of pests, such as insects or weeds, within agricultural systems. While Wald's Sequential Probability Ratio (SPRT) Test is still used, the 2-SPRT has been suggested as an alternative. Presence/absence sampling and binomial sequential tests have been suggested to reduce the total sampling effort. Recent efforts have focused on using the modeled relationship between the proportion infested and the sample mean to establish sequential testing procedures. The strengths and weaknesses of these various approaches are reviewed. Open questions are discussed.

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