The Genetics and IVF Institute conducted a clinical trial of its methods for gender selection. As of

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The Genetics and IVF Institute conducted a clinical trial of its methods for gender selection. As of this writing, 172 of 211 babies born to parents using the YSORT method were boys. Use a 0.01 significance level to test the claim that the YSORT method is effective in increasing the likelihood of a boy.


Use the sign test for the claim involving nominal data.

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Elementary Statistics

ISBN: 9780321500243

11th Edition

Authors: Mario F. Triola

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