– Unit 7: The Normal Curve Assignment In a one whole sheet of yellow pad, solve the following problems completely. Accompany your solutions with correctly shaded normal curve. Consider babies born in the “normal” range of 37– 43 weeks gestational age. Extensive data support the assumption that for such babies born in the United States, birth weight is normally distributed with mean 3432 g and standard deviation 482 g (“Are Babies Normal?” The American Statistician [1999]: 298–302). What is the probability that the birth weight of a randomly selected baby of this type exceeds 3000 g? What is the probability that the birth weight of a randomly selected baby of this type is between 3000g and 4000g? What is the probability that the birth weight of a randomly selected baby of this type is either less than 2000 g How would you characterize the lightest 10% of all birth weights? How would you characterize the middle 50% of all birth weights?

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