11 Assume that diferent 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 gil is 0.5. Assume that the groups comnt af 1acouples. Complete parts (a) through (c) below.a. Find the mean and the standard deviation for the numbers of girls in groups of 18 births.The value of the mean is p=(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 highValues of girls or fewer are significantly low(Round to one decimal place as needed)Values of girls or greater are significantly high.(Round to one decimal place as needed)c. Is the result of 16 girls a result that is significantly high? What does it suggest about the effectiveness of the method?V girts. Aresult of 16 girls would suggest that the methodThe result v significantly high, because 16 girls is(Round to one decimal place as needed)

Solution: 11. Let X be the number of girls in group and n be the sample number of births. From the…

Assume that different groups of couples use a particular method of gender selection and each couple gives bith to one baby TNs method is desioned to increase the likelihood that each baby will be a grt, but assume that the method has no effect, so the probability of a gel is 0.5. Assume that the groups const al t couples. Complete parts (a) through (c) below a. Find the mean and the standard deviation for the numbers of girls in groups of 18 births. The value of the mean is p (Type an integer or a decimal Do not round) The value of the standard deviation is a (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 of girls or fewer are significantly low (Round to one decimal place as needed ) Values of girts or greater are significantly high (Round to one decimal place as needed) c. is the result of 16 girts a result that is significantly high? What does it suggest about the effectiveness of the method? V girts. Aresult of 16 girts would suggest that the method The result V significantly high, because 16 girts is (Round to one decimal place as needed)