Navigation Links
Chi-square test


A chi-square test is any statistical hypothesis test in which the test statistic has a chi-square distribution if the null hypothesis is true. These include:

  • Pearson's chi-square test
  • Some likelihood-ratio tests are approximately chi-square tests when the sample-size is large. They are widely used in logistic regression. Other likelihood-ratio tests cannot be regarded as even approximately chi-square tests; e.g., F-tests in the analysis of variance and t-tests are likelihood-ratio tests, but the test statistic does not have a chi-square distribution under the null hypothesis.
  • Yates' chi-square test, or Yates' correction for continuity
  • Mantel-Haenszel chi-square test
  • linear-by-linear association chi-square test

All such tests involve a statistic of the form

where the word "expected" often does not denote an expected value, but an observable estimate of an expected value.



'"/>


(Date:3/6/2017)... March 6, 2017 Mintigo , ... today announced Predictive Sales Coach TM , its ... sales intelligence into Salesforce. This unique AI application ... sales organizations with deep knowledge of their customers ... intelligent engagement. Predictive Sales Coach extends Mintigo,s existing ...
(Date:3/2/2017)... 2, 2017 Who risk to be deprived ... the full report: https://www.reportbuyer.com/product/4313699/ WILL APPLE ... FIELD? Fingerprint sensors using capacitive technology represent a ... vendor Idex forecasts an increase of 360% of the ... of the fingerprint sensor market between 2014 and 2017 ...
(Date:2/28/2017)... --  Acuant , a leading provider of data capture ... new and core technologies building upon the acquisition of ... desktop Acuant FRM TM facial recognition and match ... manual review of identity documents by accredited professionals. ... most accurate capture software to streamline workflows by securely ...
Breaking Biology News(10 mins):
Other biology definition