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Category > Applied Sciences Posted 29 May 2017 My Price 4.00

Birth weights of cocaine babies

 A group of researchers at the University of Texas-Houston conducted a comprehensive study of pregnant cocaine-dependent women (Journal of Drug Issues, Summer 1997). All the women in the study used cocaine on a regular basis (at least three times a week) for more than a year. One of the many variables measured was birth weight (in grams) of the baby delivered. For a sample of 16 cocaine-dependent women, the mean birth weight was 2,971 grams and the standard deviation was 410 grams. Test (at a = .01) to determine whether the variance in birth weights of babies delivered by cocaine-dependent women is less than 200,000 grams2.

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Status NEW Posted 29 May 2017 08:05 AM My Price 4.00

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file 1496046450-Answer.docx preview (127 words )
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