The La Leche Society has released an educational video on the benefits of breast feeding. Prior to the release of the videos, it was known that 75% of new moms breast-feed exclusively for the first six weeks of their child's life. The CEO wants to know if the videos are increasing this proportion. A random sample of 400 new moms was obtained and 320 breast-fed their new babies exclusively for the first six weeks. At the 5% significance level, what conclusion can be reached?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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How to find the upper and lower confidence interval 

The La Leche Society has released an educational video on the benefits of breast feeding. Prior to
the release of the videos, it was known that 75% of new moms breast-feed exclusively for the first six
weeks of their child's life. The CEO wants to know if the videos are increasing this proportion. A
random sample of 400 new moms was obtained and 320 breast-fed their new babies exclusively for
the first six weeks. At the 5% significance level, what conclusion can be reached?
Transcribed Image Text:The La Leche Society has released an educational video on the benefits of breast feeding. Prior to the release of the videos, it was known that 75% of new moms breast-feed exclusively for the first six weeks of their child's life. The CEO wants to know if the videos are increasing this proportion. A random sample of 400 new moms was obtained and 320 breast-fed their new babies exclusively for the first six weeks. At the 5% significance level, what conclusion can be reached?
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