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1-What would be the null hypothesis for a chi-square test for testing if the claim made in the medical journal is indeed true?
2-Under the null hypothesis, what is the expected number of mixed gender triplets?
3-What is the contribution to the chi-square statistic from each of the three cells?
4-What do we know about the value of the P-value for testing if the claim made in the medical journal is indeed true?
5-At the 5% significance level, do we reject the null hypothesis?

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