Chapter 2 Application Questions Pages 34-35 #s 13-16, 21-24

# Chapter 2 Application Questions Pages 34-35 #s 13-16, 21-24...

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Shawnae Cristobal Statistics Professor DeNike September 10, 2008 Box #283 Chapter 2 Application Questions: Pages 34-35 #s 13-16, 21-24 13.The problem is that a statistical analysis cannot prove anything. 14.(a) Study A is an experiment because the amounts of alcohol is manipulated and Study B is a correlational study because the habits are just being observed not manipulated (b) Study A would show the best because then the researcher knew exactly how much alcohol they were drinking 15.His sample may not be representative of all the college students. 16.(a) independent variable – music sound level; conditions of independent variable – loud, soft, or absent; dependent variable – grades (b) independent variable – grade level; conditions of independent variable – freshman, sophomore, junior, senior; dependent variable – fun level (c) independent variable – birth order; conditions of independent variable- 1 st born, 2 nd born, 3 rd born; dependent variable – intelligence

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Unformatted text preview: (d) independent variable – daily exposure to a sun lamp; conditions of independent variable – 15 minutes or 60 minutes; dependent variable – self reported depression cases (e) independent variable – color of walls; conditions of independent variable – blue walls, green walls, red walls, or beige walls; dependent variable – aggressive behavior 21.Studies A and C depict a relationship. In each, as the scores on one variable change, the scores on the other variable change in a consistent fashion. 22.Study A because the scores are more consistent. 23.Because each relationship suggests that in nature, as the amount of X changes, Y changes also. 24.(a) no (b) yes (c) study A independent variable – weight scores, dependent variable – age scores; study B independent variable – IQ scores, dependent variable – age scores; study C independent variable – speed scores, dependent variable – shoe size...
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Chapter 2 Application Questions Pages 34-35 #s 13-16, 21-24...

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