Publications by Ken Popkin
Data606 Week 9 Homework
Problem 1 Baby weights, Part I. (9.1, p. 350) The Child Health and Development Studies investigate a range of topics. One study considered all pregnancies between 1960 and 1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area. Here, we study the relationship between smoking and weight of the baby. The variable ...
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Data607 Assignment 7
Assignment Summary Pick three of your favorite books on one of your favorite subjects. At least one of the books should have more than one author. For each book, include the title, authors, and two or three other attributes that you find interesting. Take the information that you’ve selected about these three books, and separately create three...
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Data607 Project 2 File 2
Assignment Summary For Project 2, choose any three of the “wide” datasets identified in the Week 6 Discussion items. This document contains the second of the three files selected for this assignment. File selected: Undergraduate and Graduate Enrollment submitted by Christian Thieme. link to undergraduate and graduate rates Analysis to perform...
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Data607 Project 2 File 3
Assignment Summary For Project 2, choose any three of the “wide” datasets identified in the Week 6 Discussion items. This document contains the third of the three files selected for this assignment. File selected: Unicef data on Under 5 Mortality Rates submitted by Samuel Bellows. link to Unicef Under 5 Mortality Rates Analysis to perform: Th...
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Data607 Project 2 File 1
Assignment Summary For Project 2, choose any three of the “wide” datasets identified in the Week 6 Discussion items. This document contains the first of the three files selected for this assignment. File selected: State Marriage Rates submitted by Gabriel Abreu. link to state marriage rates Analysis to perform: This file provides state marria...
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Data606 Lab 6
In August of 2012, news outlets ranging from the Washington Post to the Huffington Post ran a story about the rise of atheism in America. The source for the story was a poll that asked people, “Irrespective of whether you attend a place of worship or not, would you say you are a religious person, not a religious person or a convinced atheist?�...
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Data606 Week 6 Homework
Problem 1 2010 Healthcare Law. (6.48, p. 248) On June 28, 2012 the U.S. Supreme Court upheld the much debated 2010 healthcare law, declaring it constitutional. A Gallup poll released the day after this decision indicates that 46% of 1,012 Americans agree with this decision. At a 95% confidence level, this sample has a 3% margin of error. Based o...
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Data606 Lab 5a
In this lab, we investigate the ways in which the statistics from a random sample of data can serve as point estimates for population parameters. We’re interested in formulating a sampling distribution of our estimate in order to learn about the properties of the estimate, such as its distribution. The data We consider real estate data from th...
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Data606 Lab 5b
Sampling from Ames, Iowa If you have access to data on an entire population, say the size of every house in Ames, Iowa, it’s straight forward to answer questions like, “How big is the typical house in Ames?” and “How much variation is there in sizes of houses?”. If you have access to only a sample of the population, as is often the case...
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Data606 Week 5 Homework
Problem 1 Heights of adults. (7.7, p. 260) Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample distribution of heights in centimeters. What is the point estimate for the aver...
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