A guy notices a bunch of targets scattered over a barn wall, and in the center of each, in the "bulls-eye," is a bullet hole. "Wow," he says to the farmer, "that’s pretty good shooting. How’d you do it?" "Oh," says the farmer, "it was easy. I painted the targets after I shot the...
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Check it out: a new book on confidence intervals for proportions by Prof. Robert G. Newcombe just recently available from CRC Press: Confidence Intervals for Proportions and Related Measures of Effect Size This book also supplies a set of Excel spreadsheets to calculating CIs, see http://www.crcpress.com/product/isbn/9781439812785 Other users may be interested on a SAS...
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A guy notices a bunch of targets scattered over a barn wall, and in the center of each, in the "bulls-eye," is a bullet hole. "Wow," he says to the farmer, "that’s pretty good shooting. How’d you do it?" "Oh," says the farmer, "it was easy. I painted the targets after I shot the...
Read more »
The following two papers by Professor Robert Newcombe, in my limit observation, are the most frequently cited papers in the industry:
Two-sided confidence intervals for the single proportion: comparison of seven methods. Newcombe RG, Stat Med , Volume 17 , 8 (April 1998) pp.857-872
Interval estimation for the difference...
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