Assume that different groups oficouples usea 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...

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Extracted text: Assume that different groups oficouples usea 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 efiect, so the probability of a girl is 0.5 Assume that the groups consist of 39 couples. Complete parts (a) through (c) below a Find the mean and the standard deviation for the numbers of girls in groups of 39 births The value of the mean is u= (Type an integer.or a decimal. Do not round) The value of the standard deviation is o= (Round to one decimal place as needed.) b.Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values ofgirls or feweraresignificantly low. (Round to one decimal place as needed.) Values ofgirs or greater aresignificantly high (Round to one decimal.place.as needed.) c Is the result of 33 girs a resultthat is significantly high? What does it suggest about the effectiveness of the method? The result is significantly high because 33 girls is girls. A result of 33 girls would suggest that the method Snot Efective. (Round to one decimalplace as needed.) less than greater than