## Ecological MethodologyThis coherent text translates the methods of statisticians into "ecological English" so that students may readily apply these methods to the real world. |

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The reliability of a Poisson

**mean**is completely determined by the number of

items counted in total. Table 2.1 gives the resulting 95% and 99% confidence

limits, which can also be calculated in program-group EXTRAS (Appendix 2). For

our ...

Decide what level of precision you require. Do you want your estimate of the

**mean**to be accurate within +10% of the true population

**mean**? Within +1% of the

true

**mean**? You must decide what the desired error limits will be for your sample.

Charles J. Krebs, CHARLES L. KREBS, Professor of Zoology Charles J Krebs.

where x = Population

**mean**x = Observed value of x in sample i n = Sample size

For the variance of the measurements, we have the usual formula:* — `Y2 ...

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Ecological Methodology Charles J. Krebs,CHARLES L. KREBS,Professor of Zoology Charles J Krebs No preview available - 1999 |