In a test of the YSORT method of gender selection, 291 babies are born to couples trying
Question:
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 291.
b. Is the result of 239 boys unusually high? Does it suggest that the YSORT gender-selection method appears to be effective?
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a np 291 05 1455 boys and np 1 p 291 05 05 85 boys b Yes Using the range ...View the full answer
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