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1. In a study of maternal cigarette smoking and bone density in newborns, the following information was obtained Infants of mothers who smoked: n1 = 11, ž1 = 0.098, s1 = 0.026; Infants whose mothers did not smoke: n2 = 17, ī2 = 0.095, s2 = 0.025 We wish to calculate a 99% confidence interval for µ1 – µ2.

1. In a study of maternal cigarette smoking and bone density in newborns, the following information was obtained Infants of mothers who smoked: n1 = 11, ž1 = 0.098, s1 = 0.026; Infants whose mothers did not smoke: n2 = 17, ī2 = 0.095, s2 = 0.025 We wish to calculate a 99% confidence interval for µ1 – µ2.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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a. Degrees of freedom and t-value 

b. Margin of error and confidence interval 

c. Based on your interval in part (b), we can state with 99 percent confidence that the average bone densities in two populations of newborns

1. In a study of maternal cigarette smoking and bone density in newborns, the following information was obtained Infants of mothers who smoked: n1 = 11, ē1 = 0.098, 81 = 0.026; %3D Infants whose mothers did not smoke: n2 = 17, 2 = 0.095, s2 = 0.025 %3D We wish to calculate a 99% confidence interval for µ1 – 42.
Transcribed Image Text:1. In a study of maternal cigarette smoking and bone density in newborns, the following information was obtained Infants of mothers who smoked: n1 = 11, ē1 = 0.098, 81 = 0.026; %3D Infants whose mothers did not smoke: n2 = 17, 2 = 0.095, s2 = 0.025 %3D We wish to calculate a 99% confidence interval for µ1 – 42.
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Calculus For The Life Sciences
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ISBN:
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Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
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