Chi square test-heart disease-personality

Reference no: EM13107899

Help needed for chi square statistic on this problem:

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 significance.

Reference no: EM13107899

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