A random sample of 100 newborn girls is obtained and they have a mean birth weight of
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A random sample of 100 newborn girls is obtained and they have a mean birth weight of 2966 grams. What is the probability of randomly selecting another 100 newborn girls and getting a mean birth weight that is 2966 grams or lower? Does it seem like a sample mean of 2966 grams is unusual?
Distributions of Sample Means. In Exercise, assume that newborn girls have birth weights with a mean of 3037 grams and a standard deviation of 706 grams.
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Related Book For 
Statistical Reasoning For Everyday Life
ISBN: 978-0134494043
5th Edition
Authors: Jeff Bennett, William Briggs, Mario Triola
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