Question: 14. Gender Selection In a test of the MicroSort method of gender selection, 51 babies are born to couples trying to have baby boys, and

14. Gender Selection In a test of the MicroSort method of gender selection, 51 babies are born to couples trying to have baby boys, and 39 of those babies are boys (based on data from the Genetics & IVF Institute).

a. 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 boys born in groups of 51.

b. Is the result of 39 boys unusual? Does it suggest that the gender-selection method appears to be effective?

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