Benjamin/Cummings, 1999 - Science - 620 pages
This coherent text translates the methods of statisticians into "ecological English" so that students may readily apply these methods to the real world. Ecological Methodology, Second Edition provides a balance of material on animal and plant populations. It teaches students of ecology how to design the most efficient tests in order to obtain maximum precision with minimal work. The first part of the text focuses on biological and technical issues in statistical methodology. Students learn about advances that have been made in designing better sampling devices, along with the techniques and equipment used for sampling. The second part deals with creating solid statistical design, and presents all methods that are well-known to statisticians in a language and context that students will easily understand.
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1 lati f (s-) = — = 0.1 Relative accuracy of (s;) 100 – 2 0.1010 Probable error of s,
= +(1.226)(0.1010) = +0.1238 mm Hence the standard error could probably
range from 1.226 + 0.1238 = 1.3498 to 1.226 – 0.1238 = 1.1022 and so is precise
2. G. = 3):. (8.3) n – 1 and the standard error of the population mean X is given by:
s2 ss = Nov. – f). (84). = Standard error of the mean X Variance of the
measurements as defined above (8.3) n = Sample size f = Sampling fraction = n/
N W he re ...
The variance of the population total is simply Variance of (Xsr) = (N)*(variance of
Yst) (8.19) For the caribou, the variance of the total population estimate is
Variance of (Xsr) = 6992(69.803) = 34,105,734 and the standard error of the total
is the ...