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 0.50.5. Assume that the groups consist of 1818 couples.  a.Find the mean and the standard deviation for the numbers of girls in groups of 1818 births  The value of the mean is?  (type an interger or a decimal do not round) The value of the standard deviation is? (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 Value of __ girls  or greater is significantly high? Vaule of ___ girls or fewer is significantly low? c .Is the result of1616 girls a result that is significantly​ high? What does it suggest about the effectiveness of the​ method?  The result ______ (is/is not?) significantly high, because 16 girls is ________? ---blank number of girls?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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 is 0.50.5. Assume that the groups consist of 1818 couples. 

a.Find the mean and the standard deviation for the numbers of girls in groups of 1818 births 

The value of the mean is?  (type an interger or a decimal do not round)

The value of the standard deviation is? (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

Value of __ girls  or greater is significantly high?

Vaule of ___ girls or fewer is significantly low?

c .Is the result of1616 girls a result that is significantly​ high? What does it suggest about the effectiveness of the​ method? 

The result ______ (is/is not?) significantly high, because 16 girls is ________? ---blank number of girls? 

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