Question

# Assume that different groups of couples use a particular method of gender selection and each couple...

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 is 0.5. Assume that the groups consist of 34 couples. Complete parts​ (a) through​ (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 34 births. The value of the mean is muequals r nothing. ​(Type an integer or a decimal. Do not​ round.) The value of the standard deviation is sigmaequals nothing. ​(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 nothing girls or fewer are significantly low.​(Round to one decimal place as​ needed.) Values of nothing girls or greater are significantly high. c. Is the result of 25 girls a result that is significantly​ high? What does it suggest about the effectiveness of the​ method? The result is not significantly​high, because 25 girls is equal to greater than less than equal to nothing girls. A result of 25 girls would suggest that the method is not effective. is not effective. is effective. 2) Assume that hybridization experiments are conducted with peas having the property that for​ offspring, there is a 0.250.25 probability that a pea has green pods. Assume that the offspring peas are randomly selected in groups of 3030. Complete parts​ (a) through​ (c) below. a. Find the mean and the standard deviation for the numbers of peas with green pods in the groups of 3030. The value of the mean is muμequals= peas. ​(Type an integer or a decimal. Do not​ round.) The value of the standard deviation is sigmaσequals= peas. ​(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 peas or fewer are significantly low. ​(Round to one decimal place as​ needed.) Values of 0.0086310.008631 peas or greater are significantly high. ​(Round to one decimal place as​ needed.) c. Is a result of 22 peas with green pods a result that is significantly​ low? Why or why​ not?The result is is not is significantly​ low, because 22 peas with green pods is less than equal to greater than less than nothing peas. 3)

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