Discussion:
Q: A study suggested that personality type is related to heart disease. Specifically, type A people,who are competitive, driven, pressured, and impatient, are more prone to heart disease. Suppose that an investigator would like to examine the relationship between personality type and disease. For a random sample of individuals, personality type is assessed with a standardized test. These individuals are then examined and catagorized as to whether they have a heart disorder. The observed frequencies are as follows:
No Heart disease Heart Disease
Type A 32 18 50
Type B 128 22 150
160 40
Is there a relationship between personality and disorder? Test at the .05 level of significant