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Researchers have suggested that personality type is related to heart disease. Specifically, type A people, who...

Researchers have 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. On the other hand, type B individuals, who are less competitive and more relaxed, are less likely to have heart disease. Suppose than 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 categorized as to whether they have a heart disorder. The observed frequencies are as follows:

No Heart Disease Heart Disease
Type A 29 19 48
Type B 130 22 152
159 41


Is there a relationship between personality and disorder? Test at the 0.05 level of significance. (Round your answers to two decimal places.)

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Expected ualtele% No kaast heatt diseate seal e 20. & g-牛 이-터 터

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