Problem 1A Determination of Confounding Factors using a Test of Independence Age and Obesity Frequencies Obese Not obese Total Age 500 100 600 <50 50+ 200 200 400 Total 1000 300 700 A. Are age and obesity independent? Perform a y2 test of independence. Remember to document the five steps used in hypothesis testing. JONES& BARTLETT LEARNING Chart Your Own Course O2011 Jones & Bartlett Learning, LLC www.jblearning.com

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