The following hypothetical data represent a sample of 50

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Although the phenomenon is not well understood, it appears that people born during the winter months are slightly more likely to develop schizophrenia than people born at other times (Bradbury & Miller, 1985). The following hypothetical data represent a sample of 50 individuals diagnosed with schizophrenia and a sample of 100 people with no psychotic diagnosis. Each individual is also classified according to season in which he or she was born. Do the data indicate a significant relationship between schizophrenia and the season of birth? Test at the .05 level of significance.


Season of Birth


Summer

Fall

Winter

Spring

No disorder

27

26

23

28

Schizophrenia

8

9

17

12

Reference no: EM13618515

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