Bundle: Cengage Advantage Books: Essentials of Statistics for the Behavioral Sciences, 8th + Aplia, 1 term Printed Access Card
8th Edition
ISBN: 9781285481685
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 15, Problem 22P
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 the 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 | 26 | 24 | 22 | 28 | 100 |
| Schizophrenia | 9 | 11 | 18 | 12 | 50 |
| 35 | 35 | 40 | 40 | ||
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Chapter 15 Solutions
Bundle: Cengage Advantage Books: Essentials of Statistics for the Behavioral Sciences, 8th + Aplia, 1 term Printed Access Card
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