Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN: 9781680331141
Author: HOUGHTON MIFFLIN HARCOURT
Publisher: Houghton Mifflin Harcourt
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Want to understand practice scenarios from my tips book on experimental designs and threats to internal and external validity. 

In this data set, the outcome is a measure of symptoms related to heart disease (0 = no
symptoms, 20 = many symptoms). This study looks at how different factors (e.g.,
smoking, intimacy) influence heart disease symptoms. For this study, we want to
identify any main effects and describe any interaction. Let's list the findings in 3-5 bullet
points in terms of who is at the greatest and least risk for heart disease in each study. A
difference of 2 points between the means is statistically significant.
Study 1. Effects of intimacy and smoking on mean heart disease symptoms.
Smoker
Non-Smoker
Male
18
12
15
Female
12
6
9
15
9
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Transcribed Image Text:In this data set, the outcome is a measure of symptoms related to heart disease (0 = no symptoms, 20 = many symptoms). This study looks at how different factors (e.g., smoking, intimacy) influence heart disease symptoms. For this study, we want to identify any main effects and describe any interaction. Let's list the findings in 3-5 bullet points in terms of who is at the greatest and least risk for heart disease in each study. A difference of 2 points between the means is statistically significant. Study 1. Effects of intimacy and smoking on mean heart disease symptoms. Smoker Non-Smoker Male 18 12 15 Female 12 6 9 15 9
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