Bio/Problem3

 

Problem 3

 

 

 

 

 

1. present a contingency table

    

2. state the appropriate null and the alternative hypothesis

    

3. for each test

    

   1. determine a critical value using

       

   2. present a test statistic

       

   3. present a p-value

       

   4. interpret  the p-value

       

   5. state your decision

       

   6. state your conclusion

 

 

 

In a study of 112 patients with acute brief episodes of psychoses, researchers classified subjects into four personality types: obsessiod, asthenic/low self-confident, asthenic/high self-confident, and nervous/tense. The table below crosses-classifies these personality types with three groups of subjects: those with acute and transient psychotic disorders (ATPD), those with “positive”schizophrenia (PS), and those with bipolar schizo-affective disorder (BSAD). Perform an appropriate test to determine if personality types and disorder groups are related.

 

 

 

	Personality Type
	Obsessoid (O)	Asthenic/low  Self-confident (A)	Asthenic/high Self-confident (S)	Nervous/tense (N)
ATPD	10	21	6	5
PS	3	18	4	8
BSAD	7	16	9	5