The following references can be used to cite this critical chi-square value calculator:
 | Soper, D.S. (2012) "Critical Chi-Square Value Calculator (Online Software)", http://www.danielsoper.com/statcalc3. |
| Abramowitz, M. and Stegun, I.A., eds. (1965), "Handbook of Mathematical Functions", Dover, New York, NY. |
| Johnson, N., and S. Kotz. (1970) "Distributions in Statistics: Continuous Univariate Distributions:. Hoboken, NJ: John Wiley & Sons. |
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