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Please use this identifier to cite or link to this item: http://purl.umn.edu/14652

Title: THE EFFECT OF ROUNDING ON THE PROBABILITY DISTRIBUTION OF REGRADING IN THE U.S. PEANUT INDUSTRY
Authors: Diaz, Edgar F. Pebe
Brorsen, B. Wade
Anderson, Kim B.
Richter, Francisca G.-C.
Kenkel, Philip L.
Keywords: grading
normal-jump distribution
peanuts
regrading
rounding
Issue Date: 2002
Abstract: This article determines the effect of rounding (pointing-off) of grade percentages to the nearest whole number on the probability distribution of regrading in the peanut industry. Results show that rounding causes graders to have to regrade an extra 4% of samples even when they follow all directions and make no mistakes. When rounding was not used, the sample weight had little effect on the probability of regrading. With rounding, the probability of regrading was reduced by beginning with a larger than 500-gram sample. Thus, rounding provides an incentive to take overweight samples in order to avoid regrading. Overweight samples can overestimate the value of peanuts. A low-cost way to improve peanut grading accuracy would be to round to tenths rather than whole numbers.
URI: http://purl.umn.edu/14652
Institution/Association: Journal of Agribusiness>Volume 20, Number 1, Spring 2002
Total Pages: 14
Language: English
From Page: 103
To Page: 116
Collections:Volume 20, Number 1, Spring 2002

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