title: Statistical evaluations in fitting problems.
abstract: The problem of error analysis is considered taking into account all possible correlations and a prior information about the accessible parameter space. Special attention is paid to the correct determination of the relative weight of experimental data and the a priori guess. The applications of statistical chi2- and F-tests to the fitting problems are also discussed.
authors.affiliation: Moscow Engineering Physics Institute, Russia. klmn@htsc.mephi.ru
authors.forename: K V
authors.initials: KV
authors.lastname: Klementev