Confidence Bands in Straight Line Regression
作者:
A.V. Gafarian,
期刊:
Journal of the American Statistical Association
(Taylor Available online 1964)
卷期:
Volume 59,
issue 305
页码: 182-213
ISSN:0162-1459
年代: 1964
DOI:10.1080/01621459.1964.10480711
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
This paper develops a method for obtaining confidence bands in polynomial regression when the observations are independently distributed with constant but unknown variance. The bands may be obtained, in principle, over arbitrary sets of the independent variable with exact preassigned confidence coefficients. In general, difficult distribution problems result when specific applications are attempted. The major portion of this paper is concerned with first degree polynomials since some progress has been made here. A table is provided to obtain a constant width confidence band which contains the true but unknown straight regression line for values of the independent variable in some arbitrarily selected interval with an exact preassigned confidence coefficient. The present method is compared with the classical hyperbolic band for the whole regression line.
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