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StatisticsQ&A LibraryInterval for One Sample Continuous Outcome An investigator wants to estimate the mean birth weight of infants born full term to mothers who are 19 years of age or younger The mean birth weight of infants born full term to mothers 20 years of age and older is 351Qg with a standard deviation of 385g A. How many women 19 years of age or younger must be enrolled in the study to ensure that a 95% confidence interval estimate of the mean birth weight of their 196 infants has a margin of error not exceeding 100g? B. How many do you need if 5% deliver pre-term? ONES & BARTLETT LEARNING 2011 Jones & Bartlett Learning, LLCQuestion

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