lab4solutions.pdf - Lab 4 The Sampling Distribution and the Central Limit Theorem(Part 1 Solutions INST 314 Fall 2018 Motivation Smoking and Birthweight

lab4solutions.pdf - Lab 4 The Sampling Distribution and the...

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Lab 4: The Sampling Distribution and the Central Limit Theorem (Part 1) Solutions INST 314 Fall 2018 Motivation: Smoking and Birthweight in North Carolina In 2004, the state of North Carolina released to the public a large data set containing information on births recorded in this state. This data set has been of interest to medical researchers who are studying the relation between habits and practices of expectant mothers and the birth of their children. One of the variables collected was habit , indicating whether the mother was a smoker or a nonsmoker, and we are interested in whether this is related to the lowbirthweight status of the baby. In this lab, we will go over how to use simulations to generate a theoretical sampling distribution, then use that sampling distribution to make a conclusion about the relationship between a mother’s smoking habit and the baby’s birthweight. Let’s start as always by bringing in the packages and data that we’ll be using.

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