Friday
November 28, 2014

Homework Help: statistics

Posted by Rob on Monday, March 7, 2011 at 8:02am.

An obstetrician maintains that preterm babies (gestation less than 37 weeks) have a higher variability of birth weight than do full-term babies (gestation 37-41 weeks). According to the National Vital Statistics Report, Vol. 48, No. 3, the birth weights of full time babies are normally distributed with a standard deviation of 505.6 grams. A random sample of 41 preterm babies results in a standard deviation of 840 grams. Test the obstetrician's claim that the variability in birth weight for preterm babies is more than that of full-term babies, at the level of significance 0.01.
Any help on figuring this out would be greatly appreciated. Thanks for your time.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Stats. - An obstetrician maintains that preterm babies (gestation less than 37 ...
childhood - it has been propsed that there is a tendency for parent to trat ...
statistics - Based on data from the National Center for Health Statistics, N. ...
psychology - You would be concerned about possibility of Rh incompatibility if A...
stats. - Based on data from the National Center for Health Statistics, N. Wetzel...
Grammar - Select the correct sentence: A) The patient was not seen for prenatal ...
Grammar - Select the correct sentence: A) The patient was not seen for prenatal ...
Statistics - Suppose that the weight of male babies less than 2 months old is ...
Statistics - Suppose that the weight of male babies less than 2 months old is ...
Statistics - The Gibbs Baby Food Company wishes to compare the weight gain of ...

Search
Members