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In an experiment testing a method of gender selection intended to increase the likelihood that a baby is agirl, 934 couples give birth to 468
In an experiment testing a method of gender selection intended to increase the likelihood that a baby is agirl, 934 couples give birth to 468 girls and 466 boys. A company representative argues that this is evidence that the method iseffective, because the probability of getting 468 girls in 934 births by chance is only 0.026 , which is less than 0.05. Do you agree with thisargument? Why or whynot? A. No, the argument is not valid. With 934 births, any specific number of girls will have a very lowprobability, but 468 girls is very close to the 467 girls that isexpected, so the result is not evidence that the method is effective. B. No, the argument is not valid. The sample size is too small to make such a conclusion. C. Yes, the argument is valid. More girls were born thanboys, so the method has been proven to be effective. D. Yes, the argument is valid. If the probability of an observed difference occurring by chance is 0.05 orless, the difference is statistically significant at the 0.05 level
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