Using all 1991 birth records in the computerized national birth certificate registry compiled by the NationalCenter for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano found that the birthweights of babies in the United States are not symmetric ("Are babies normal?" The American Statistician,Nov 1999, 53:4). However, they also found that when infants born outside of the "typical" 37-43 weeks andinfants born to mothers with a history of diabetes are excluded, the birth weights of the remaining infantsdo follow a Normal model with mean p = 3432 g and standard deviation o = 482 g. The following questionsrefer to infants born from 37 to 43 weeks whose mothers did not have a history of diabetes.Compute the z-score of an infant who weighs 3258 g. (Round your answer to two decimal places.)Approximately what fraction of infants would you expect to have birth weights between 3640 g and 3990 g?(Express your answer as a decimal, not a percent, and round to three decimal places.)Approximately what fraction of infants would you expect to have birth weights below 3640 g? (Express youranswer as a decimal, not a percent, and round to three decimal places.)A medical researcher wishes to study infants with high birth weights and seeks infants with birth weightsamong the heaviest 14%. Above what weight must an infant's birth weight be in order for the infant beincluded in the study? (Round your answer to the nearest gram.)

Given that. X~N( μ , ?^2 ) μ=3432 , ?=482 Z-score =( x - μ )/? NOTE:- According to…

Answered: Jsing all 1991 birth records in the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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