Asked by Corey
Babies born weighting 2500 grams (about 5.5 pounds) or less are called low-birth-weight babies, and this condition sometimes indicates health problems for the infant. The mean birth weight for children born in a certain country is about 3462 grams (about 7.6 grams). The mean birth weight for babies born one month early is 2655 grams. Suppose both standard deviations are 450 grams. Also assume that the distribution of births weights is roughly unimodal and symmetric. What is the standardized score (z-score), relative to all births in the country,for a baby with a birth weight of 2500 grams?
Answers
Answered by
PsyDAG
Z = (score-mean)/SD = (2500-3462)/450 = ?
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