Accurate confidence intervals in regression analyses of non-normal data

Autor: Robert J. Boik
Rok vydání: 2006
Předmět:
Zdroj: Annals of the Institute of Statistical Mathematics. 60:61-83
ISSN: 1572-9052
0020-3157
Popis: A linear model in which random errors are distributed independently and identically according to an arbitrary continuous distribution is assumed. Second- and third-order accurate confidence intervals for regression parameters are constructed from Charlier differential series expansions of approximately pivotal quantities around Student’s t distribution. Simulation verifies that small sample performance of the intervals surpasses that of conventional asymptotic intervals and equals or surpasses that of bootstrap percentile-t and bootstrap percentile-|t| intervals under mild to marked departure from normality.
Databáze: OpenAIRE