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Gender Selection In a test of the XSORT method of gender selection, 574 babies are born to couples trying to have baby girls, and 525

Gender Selection

In a test of the XSORT method of gender selection, 574 babies are

born to couples trying to have baby girls, and 525 of those babies are girls (based on data from

the Genetics & IVF Institute).

If the gender-selection method has no effect and boys and girls are equally likely, find the

mean and standard deviation for the numbers of girls born in groups of 574.

Is the result of 525 girls unusual? Does it suggest that the gender-selection method appears

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