Using the Chi-Plot for Studying the Randomness of Residuals from a Fitted Model
by Dibyojyoti Bhattacharjee and Kishore K. Das.
The chi-plot initially developed by Fisher and Switzer is used to study the
existence of randomness is a set of observations. Also the use of residual as diagnostic
tool for detecting outliers from an assumed model, and for assessing the overall goodness
of fit of the model, is well established. The paper makes an attempt to check the
goodness -of -fit of a data to a given model using the chi-plot. A comparison of the
conclusion drawn from the graphical technique is compared with those obtained from
the other established statistical techniques.
Chi-plot, Goodness- of -fit, Statistical Graphics
Dibyojyoti Bhattacharjee, firstname.lastname@example.org
Kishore Kumar Das, email@example.com
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