Table of Critical Q-values for a 95% Confidence Level

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Basic Statistics

Linear Regression

Introduction

Correlation Coefficient

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The Regression Equation

Errors in Regression Equations

Using the Calibration Curve

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Outliers and the Q-test

Q-test tables

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Table of critical values for Dixon's Q-test at 95% confidence level, from Christian, "Analytical Chemistry", 6th ed, pp. 98-99.

n Qcrit
3 0.970
4 0.829
5 0.710
6 0.625
7 0.568
8 0.526
9 0.493
10 0.466
15 0.384
20 0.342
25 0.317
30 0.298

© Dr. David Stone (dstone at chem.utoronto.ca) & Jon Ellis (jon.ellis at utoronto.ca) , August 2006