Wikipedia 10K Redux by Reagle from Starling archive. Bugs abound!!!
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back to [[Statistical Theory]] -- [[Applied Statistics]] In general, we assume that we know everything about an situation we are observing except for the value of a certain [[numerical parameter]]. We use the data to get information about that parameter. The most common case is that of the [[location parameter]] of a [[Normal Distribution]] which we estimate by the [[Arithmetic Mean]] of the observations. When we just quote the estimated value, we have a [[point estimate]]. More often, we wish to find an interval with a high probability of covering the value of the parameter. This is a [[confidence interval]], a specific form of an [[interval estimate]]. ---- [[Dick Beldin]]