Predictor Sort Sampling, Tight t's and the Analysis of Covariance : Theory,Tables and Examples
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چکیده
Contents In recent years wood strength researchers have begun to replace experimental unit allocation via random sampling with allocation via sorts based on nondestructive measurements of strength predictors such as modulus of elasticity and specific gravity. Although this procedure has the potential of greatly increasing experimental sensitivity, as currently implemented it can easily reduce sensitivity. In this paper we discuss the problem and we present solutions. Given the existence of nondestructive measurements of strength predictors, our methods can be used to reduce sample sizes. We have written a public domain computer program that implements the methods.tions are sent to more than 1,000 libraries in the United States and elsewhere. The use of trade or firm names is for information only and does not imply endorsement by the U.S. Department of Agriculture of any product or service.
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Predictor Sort Sampling, Tight T's and the Analysis of Covariance
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تاریخ انتشار 1997