Question: Among 100 babies born to 100 couples using a gender-selection method, 55 of them are girls. Use a 0.01 significance level to test the claim

Among 100 babies born to 100 couples using a gender-selection method, 55 of them are girls. Use a 0.01 significance level to test the claim that for couples using this method, the proportion of girls is not equal to 0.5.

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