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# Introduction to Hypothesis Testing

BHS220 Module 4 - Background

INTRODUCTION TO HYPOTHESIS TESTING

Required Reading:

Michelson, S. & Schofield, T. (2002). Chapter 2: Inference (pages 45-53). In: The Biostatistics Cookbook: The Most User-Friendly Guide for the Bio/Medical Scientist. Kluwer Academic Publishers. Available in Ebrary, accessed via Trident’s online library.

Additional Reading (Optional)

Davis, R. and Mukamal, K. (2006). Statistical Primer for Cardiovascular Research: Hypothesis testing. Retrieved from http://circ.ahajournals.org/content/114/10/1078.full

McDonald, JH (2009). Basic concepts of hypothesis testing. Retrieved from http://udel.edu/~mcdonald/stathyptesting.html

Johnson, L. (2008). Principles of Hypothesis Testing for Public Health. National Center for Complementary and Alternative Medicine. Retrieved from www.nihtraining.com/cc/ippcr/current/downloads/HypoTest.pdf

Additional Resources (Optional)

Creative Heuristics (2011, Dec.). Hypothesis tests, p-value - Statistics Help. Retrieved from http://www.youtube.com/watch?v=0zZYBALbZgg

Creative Heuristics (2011, Oct. ) Understanding the p-value - Statistics Help. Retrieved from http://www.youtube.com/watch?v=eyknGvncKLw

Stenson, E. (2012, Apr.) Basic statistics tutorial 45 Hypothesis testing (one-sided), sample and population mean (z). Retrieved from http://www.youtube.com/watch?v=IKxyXs6kRTo

Module 4 - Case

INTRODUCTION TO HYPOTHESIS TESTING

Assignment Overview

Suppose that a 2012 National Health Interview Survey gives the number of adults in the United States which gives the number of adults in the United States (reported in thousands) classified by their age group, and whether or not respondents have ever been tested for HIV. Here are the data:

Data table: attached

Case Assignment

Discuss probability. What is its history? What is the theory of probability? How is it calculated? What are the advantages and disadvantages of using this technique?

Identify and discuss the two major categories of probability interpretations, whose adherents possess conflicting views about the fundamental nature of probability.

Based on this survey, what is the probability that a randomly selected American adult has never been tested? Show your work. Hint: using the data in the two total rows, this would be calculated as p (NT) /( p (NT) + p (T)), where p is probability.

What proportion of 18- to 44-year-old Americans have never been tested for HIV? Hint: using the values in the 18–44 cells, this would be calculated as p (NT) / ( p (NT) + p (T)), where p is probability. Show your work.

Assignment Expectations

Use the information in the modular background readings as well as resources you find through ProQuest or other online sources. Please be sure to cite all sources and provide a reference list at the end of the paper. Submit the paper as a Word document through the link provided for the assignment.