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Reply: To PMID 23336891

María J Mataró, Gemma Sánchez-Espín, Carlos Porras

    The Annals of Thoracic Surgery
    |September 3, 2013
    PubMed
    Summary

    No abstract available in PubMed .

    Keywords:
    23

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    Chi-square Analysis02:46

    Chi-square Analysis

    The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
    The chi-square test was developed by Pearson in 1990.
    The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...

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