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IF YOU CANT ANSWER FOR ALL 4 PART THEN DON ANY TWO 1. Newborn weight. A...

IF YOU CANT ANSWER FOR ALL 4 PART THEN DON ANY TWO

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).

Math   Statistics-And-Probability   
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