Pearson's chi square test (goodness of fit) | Probability and Statistics | Khan Academy

Level: beginner
Khan Academy, 2010
Topic: methodology
Format: Tutorial
Duration: 00:11:47
Link: https://www.youtube.com/watch?v=2QeDRsxSF9M

The chi-square distribution is used to test a hypothesis. Therefore, expected values are related to observed values using a chi-square distribution. Then using p-value tables the hypothesis is tested at a 5% significance level.


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