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StatisticsQ&A LibraryAssume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect, so the probability of a girl is0.5. Assume that the groups consist of 48 couples.Is the result of 35 girls a result that is significantly high? What does it suggest about the effectiveness of the method?Question

Asked Feb 19, 2020

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Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect, so the probability of a girl is0.5. Assume that the groups consist of 48 couples.

Is the result of 35 girls a result that is significantly high? What does it suggest about the effectiveness of the method?

Step 1

From the provided information,

Probability of a girl (*p*) = 0.5

Number of girls in group (*n*) = 48

The process will follow binomial distribution. The mean of the binomial distribution can be obtained as:

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