Maternal Smoking and Infant Health
Stat Labs: Mathematical Statistics through Applications
Chapter 1
Introduction
In this assignment, the birth weights of babies born to smokers and none-smokers will be compared. Some background information is already given in “Stat Labs: Mathematical Statistics through Applications” text book about the average weights of newborn babies. Furthermore statistical information such as number of smoking mothers, none-smoking mothers, their babies’ weights are also given at the website link “http://www.stat.berkeley.edu/users/statlabs/labs.html” and will be used as reference for this assignment.
The Data
Number of Births: 1237
Number of Births to Smokers: 485
Number of Births to None-Smokers: 742
Number of Births to Smoking Status Unknown: 10
Average Birth Weight of a Healthy Newborn: 5.5-8.8 lbs (88 – 140.8 ounces)

Figure 1.a

Figure 1.b

Figure 1.c
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Table 1.a
devam et buradan
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