question archive 1) Newborn weight
1) Newborn weight
Subject:MathPrice: Bought3
1) Newborn weight. A study takes a SRS from a population of full-term infants. The standard deviation of birth weights in this population is 2 pounds. Calculate 95% confidence intervals for μ for samples in which:
a) n = 81 and mean = 7.0 pounds
b) n = 9 and mean = 7.0 pounds
c) Which sample provides the most precise estimate of the mean birth weight?
d) Interpret the CI you computed in part a).
