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 40 couples. Complete parts (a) through (c) below. The value of the mean is µ = (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 girls or greater are significantly high. (Round to one decimal place as needed.) c. Is the result of 37 girls a result that is significantly high? What does it suggest about the effectiveness of the method? girls. A result of 37 girls would suggest that the method significantly high, because 37 girls is The result (Round to one decimal place as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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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 0.5. Assume that the groups consist of 40 couples. Complete parts (a) through (c)
below.
a. Find the mean and the standard deviation for the numbers of girls in groups of 40 births.
The value of the mean is μ =
(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 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.)
. Is the result of 37 girls a result that is significantly high? What does it suggest about the effectiveness of the method?
The result
significantly high because 37 airls is
airls A result of 37 airls would suggest that the method
▼
Transcribed Image Text:← 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 40 couples. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 40 births. The value of the mean is μ = (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 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.) . Is the result of 37 girls a result that is significantly high? What does it suggest about the effectiveness of the method? The result significantly high because 37 airls is airls A result of 37 airls would suggest that the method ▼
K
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 40 couples. Complete parts (a) through (c)
below.
The value of the mean is μ =
(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 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 37 girls a result that is significantly high? What does it suggest about the effectiveness of the method?
girls. A result of 37 girls would suggest that the method
significantly high, because 37 girls is
The result
(Round to one decimal place as needed.)
Transcribed Image Text:K 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 40 couples. Complete parts (a) through (c) below. The value of the mean is μ = (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 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 37 girls a result that is significantly high? What does it suggest about the effectiveness of the method? girls. A result of 37 girls would suggest that the method significantly high, because 37 girls is The result (Round to one decimal place as needed.)
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