Under the null hypothesis that the population distribution is normal,the test statistic for the Jarque-Bera test for normality has a chi-square distribution with 2 degrees of freedom.

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This is correct as the Jarque-Bera test for normality is based on the assumption that the population distribution is normal and the test statistic is approximately chi-square distributed with 2 degrees of freedom under the null hypothesis.

Under the Null Hypothesis That the Population Distribution Is Normal,the