Biology 2290F/G Study Guide - Final Guide: Type I And Type Ii Errors, Null Hypothesis, Biostatistics
20 Oct 2011
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Document Summary
Statistics: science that deal with the analysis and interpretation of data with a view towards objective evaluation of the reliability of conclusions based on the data. Biometry or biostatistics: data analysis applied to biological problems. Variable: measured response of an experimental unit. Sample: small representative collection from a population. Ratio scales of measurement: measurement scaled which have a true zero point and a constant interval size. Parameter: a quantity such as mean or standard deviation, when describing a population. Statistic: estimate of population parameter, such as sample mean or sample standard deviation. = sum of all observations of variable x. Variance: measure of the variation of observations within a population: same variance (s2) is an estimate of the true (or population) variance. Standard deviation: square root of the variance: measure of the dispersion of the population around the mean, used when we wish to describe the population that has been sampled, 1 organism/replicate only taking one measurement.
