Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A test statistic that is calculated as the sum of the squares of observed values minus expected values divided by the expected values.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics A
test statistic used in thechi-square test .
Etymologies
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Examples
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I did a chi-square "goodness of fit" test and got a P value of 0.18.
Archive 2009-03-01 AYDIN 2009
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Now, let's apply the chi-square test to each set of the following made-up numbers.
Archive 2009-03-01 AYDIN 2009
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Goodness of fit between different documents was obtained by computing the so called Q value from the standard chi-square hypothesis test.
Deconstructing Obama Jack Cashill 2011
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Goodness of fit between different documents was obtained by computing the so called Q value from the standard chi-square hypothesis test.
Deconstructing Obama Jack Cashill 2011
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"Using the chi-square statistic," observes one professor, "Obama's and Ayers's books were indistinguishable, while Obama's book was easily distinguishable from books by other authors."
Archive 2009-10-01 2009
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Rabett Labs hitched up the IBM computators bought cheap from the Manhattan Project, shanghaied recruited a bunch of young volunteers, and found that for this case Pearson's chi-square statistic is 94, which means that the probability of the null hypothesis being true is 4.5 x 10-18 or about as likely as Ethon going vegan.
Archive 2010-01-01 EliRabett 2010
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But applying Pearson's chi-square assumes a lot more than that!
New Year's Puzzler EliRabett 2010
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Rabett Labs hitched up the IBM computators bought cheap from the Manhattan Project, shanghaied recruited a bunch of young volunteers, and found that for this case Pearson's chi-square statistic is 94, which means that the probability of the null hypothesis being true is 4.5 x 10-18 or about as likely as Ethon going vegan.
New Year's Puzzler EliRabett 2010
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By a chi-square test, this has a 99% probability of indicating an increased confusion of flaunt for flout.
Flout good taste; flaunt your excesses « Motivated Grammar 2008
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By a chi-square test, this has a 99% probability of indicating an increased confusion of flaunt for flout.
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