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Author Question: Babies weighing less than 5.5 pounds at birth are considered low-birth-weight babies. In the United ... (Read 56 times)

Dannyrod2

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Babies weighing less than 5.5 pounds at birth are considered “low-birth-weight babies.” In the United States, 7.6% of newborns are low-birth-weight babies. The following information was accumulated from samples of new births taken from two counties.

 

 

Hamilton

Shelby

Sample size

150

200

Number of “low-birth-weight babies

18

22


 

a.Develop a 95% confidence interval estimate for the difference between the proportions of low-birth-weight babies in the two counties.
b.Is there conclusive evidence that one of the proportions is significantly more than the other? If yes, which county?Explain, using the results of part (a). Do not perform any test.



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Marked as best answer by Dannyrod2 on Mar 25, 2023

ad2018

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Dannyrod2

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Reply 2 on: Mar 25, 2023
YES! Correct, THANKS for helping me on my review


kilada

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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