There is a clear trend: as the anger score increases, so does the percent who suffer heart disease.  Is this relationship between anger and heart disease statistically significant?  Show all your work.  Include the null and alternative hypotheses, significance level, critical values from the chi-square distribution with degrees of freedom, chi-square test statistic, p-value, conclusion from the test, conclusion stated in context of the stated problem.   Anger Score   Low Moderate High Total CHD 53 110 27   No CHD 3057 4611 606   Total

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question

People who get angry easily tend to have more heart disease.  That's the conclusion of a study that followed a random sample of 12,986 people from three locations for about four years.  All subjects were free of heart disease at the beginning of the study.  The subjects took the Speilberger Trait Anger Scale, which measures how prone a person is to sudden anger.  Here are data for the 8464 people in the sample who had normal blood pressure.  CHD stands for "coronary heart disease."  This includes people who had heart attacks and those who needed medical treatment for heart disease.

There is a clear trend: as the anger score increases, so does the percent who suffer heart disease.  Is this relationship between anger and heart disease statistically significant?  Show all your work.  Include the null and alternative hypotheses, significance level, critical values from the chi-square distribution with degrees of freedom, chi-square test statistic, p-value, conclusion from the test, conclusion stated in context of the stated problem.

 

Anger Score
  Low Moderate High Total
CHD 53 110 27  
No CHD 3057 4611 606  
Total        

 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Data Collection, Sampling Methods, and Bias
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman