Sampling Routines and the Accuracy of Patrons' Butterfat Tests

Louis F. Herrmann, W. G. Bryan and Elsie Anderson

No 310025, Marketing Research Reports from United States Department of Agriculture, Agricultural Marketing Service, Transportation and Marketing Program

Abstract: Excerpts from the report Introduction: The taking of a sample that will accurately represent the butterfat content of the milk in a single day's delivery by one producer is a problem to which much consideration has been given. Yet, even if each day's delivery is sampled satisfactorily, there remains the problem of accurately representing all the milk delivered during a month in order to establish a basis of payment which will be equally fair to plants and their patrons. The object of the study reported here was to estimate how closely an individual producer's monthly weighted average butterfat percentage is represented by tests of 10- and 15-day composite samples or by samples taken and tested on one or more days during the month. This information would help to reconcile the conflict between cost of sampling and testing and the desire for less variable results.

Keywords: Livestock Production/Industries; Research Methods/Statistical Methods (search for similar items in EconPapers)
Pages: 34
Date: 1954-05
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Persistent link: https://EconPapers.repec.org/RePEc:ags:uamsmr:310025

DOI: 10.22004/ag.econ.310025

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