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Reliability of stocks number, for Jon
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southernmnman
Posted 4/1/2015 10:03 (#4490114)
Subject: Reliability of stocks number, for Jon


South central Minnesota
From the stocks report
"Reliability: Reliability of the on-farm and off-farm stocks must be treated separately because the survey designs for the two surveys are very different. The on-farm stocks estimates are subject to sampling variability because all operations holding on-farm stocks are not included in the sample. This variability, as measured by the relative standard error at the United States level, is approximately 2.1 percent for corn 3.0 percent for soybeans, and 2.6 percent for all wheat. This means that chances are approximately 95 out of 100 that survey estimates for stocks will be within plus or minus
4.2 percent for corn, 6.0 percent for soybeans, and 5.2 percent for all wheat of the value that could be developed by averaging the estimates produced from all possible samples selected from the same population and surveyed using the same procedures. The relative standard errors for sorghum, barley, and oats are 14.2, 4.6, and 8.2 percent, respectively."

Did you not say your estimate was off by about 94 million? For someone putting a pencil to the numbers out on the great plains of Kansas, not too bad me boy!

Edited by southernmnman 4/1/2015 10:04
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