Mind on Statistics
5th Edition
ISBN: 9781285463186
Author: Jessica M. Utts, Robert F. Heckard
Publisher: Brooks Cole
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Chapter 4, Problem 4.10E
Do grumpy old men have a greater risk of having coronary heart disease than men who aren’t so grumpy? Harvard Medical School researchers examined this question in a prospective observational study reported in the November 1994 issue of Circulation (Kawachi et al., 1994). For 7 years, the researchers studied men between the ages of 46 and 90. All study participants completed a survey of anger symptoms at the beginning of the study period. Among 199 men who had no anger symptoms, there were 8 cases of coronary heart disease. Among 559 men who had the most anger symptoms, there were 59 cases of coronary heart disease.
a. Construct a
b. Among those with no anger symptoms, what percentage had coronary heart disease?
c. Among those with the mostanger symptoms, what percentage had coronary heart disease?
d. Draw a bar graph of these data. Based on this graph, does there appear to be an association between anger and the risk of coronary heart disease? Explain.
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Chapter 4 Solutions
Mind on Statistics
Ch. 4 - Prob. 4.1ECh. 4 - Prob. 4.2ECh. 4 - Each fall, auditions for the band and orchestra...Ch. 4 - Prob. 4.4ECh. 4 - For each pair of variables, indicate whether or...Ch. 4 - For each pair of variables, indicate whether or...Ch. 4 - Suppose a study on the relationship between gender...Ch. 4 - Prob. 4.8ECh. 4 - Prob. 4.9ECh. 4 - Do grumpy old men have a greater risk of having...
Ch. 4 - Prob. 4.11ECh. 4 - Prob. 4.12ECh. 4 - Prob. 4.13ECh. 4 - Prob. 4.14ECh. 4 - Prob. 4.15ECh. 4 - Prob. 4.16ECh. 4 - For Exercise 4.17 and 4.18: A study is done to...Ch. 4 - For Exercise 4.17 and 4.18: A study is done to...Ch. 4 - Prob. 4.19ECh. 4 - a. For a relative risk of 2.1, what is the percent...Ch. 4 - a. For a relative risk of 1.53, what is the...Ch. 4 - Science News (February 25, 1995, p. 124) reported...Ch. 4 - Prob. 4.23ECh. 4 - Prob. 4.24ECh. 4 - Exercise 4.10 described a study in which men were...Ch. 4 - Prob. 4.26ECh. 4 - Prob. 4.27ECh. 4 - Suppose a newspaper article states that drinking...Ch. 4 - Prob. 4.29ECh. 4 - Prob. 4.30ECh. 4 - Prob. 4.31ECh. 4 - Case Study 1.5 (p. 4) was called Does Prayer Lower...Ch. 4 - Prob. 4.33ECh. 4 - Prob. 4.34ECh. 4 - Prob. 4.35ECh. 4 - Prob. 4.36ECh. 4 - Prob. 4.37ECh. 4 - Prob. 4.38ECh. 4 - Prob. 4.39ECh. 4 - Researchers studied a random sample of North...Ch. 4 - Refer to Exercise 4.40. a. Write a two-way table...Ch. 4 - In a national survey, n=1000 randomly selected...Ch. 4 - Prob. 4.43ECh. 4 - Prob. 4.44ECh. 4 - Prob. 4.45ECh. 4 - Prob. 4.46ECh. 4 - Prob. 4.47ECh. 4 - Prob. 4.48ECh. 4 - Prob. 4.49ECh. 4 - Prob. 4.50ECh. 4 - Prob. 4.51ECh. 4 - Prob. 4.52ECh. 4 - Refer to the Minitab output for Exercise 4.52. The...Ch. 4 - Prob. 4.54ECh. 4 - Prob. 4.55ECh. 4 - Prob. 4.56ECh. 4 - Prob. 4.57ECh. 4 - Prob. 4.58ECh. 4 - Exercise 4.2 (p.136) gave the following data from...Ch. 4 - In Example 4.15 (p. 130), a statistically...Ch. 4 - Prob. 4.61ECh. 4 - Prob. 4.62ECh. 4 - Prob. 4.63ECh. 4 - Prob. 4.64ECh. 4 - Prob. 4.65ECh. 4 - Prob. 4.66ECh. 4 - Prob. 4.67ECh. 4 - Prob. 4.68ECh. 4 - Prob. 4.69ECh. 4 - Prob. 4.70ECh. 4 - Prob. 4.71ECh. 4 - Prob. 4.72ECh. 4 - Prob. 4.73ECh. 4 - Prob. 4.74ECh. 4 - Prob. 4.75ECh. 4 - Prob. 4.76ECh. 4 - Prob. 4.77ECh. 4 - Prob. 4.78ECh. 4 - Prob. 4.79ECh. 4 - Prob. 4.80ECh. 4 - Prob. 4.81ECh. 4 - Prob. 4.82ECh. 4 - Prob. 4.83ECh. 4 - Prob. 4.84E
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