The schizophrenia scale on a widely used personality scale is standardized to have a mean of 50 for a national group of normal adults. You administer the scale to a random sample of 20 students from a large university and obtain the following results:
Is there any reason to believe that the norms based on the national standardization group are inappropriate for college students?
(a)Set up

and

(b)Determine the critical value(s) of

(c)Perform the statistical test.
(d) Draw final conclusions.

Question

The schizophrenia scale on a widely used personality scale is standardized to have a mean of 50 for a national group of normal adults. You administer the scale to a random sample of 20 students from a large university and obtain the following results: 
  Is there any reason to believe that the norms based on the national standardization group are inappropriate for college students?
(a)Set up 
  
 and 
  
(b)Determine the critical value(s) of 
  
(c)Perform the statistical test.
 (d)  Draw final conclusions.

Quizplus · Accepted Answer

The Answer of The schizophrenia scale on a widely used personality scale is standardized to have a mean of 50 for a national group of normal adults. You administer the scale to a random sample of 20 students from a large university and obtain the following results: 
  Is there any reason to believe that the norms based on the national standardization group are inappropriate for college students?
(a)Set up 
  
 and 
  
(b)Determine the critical value(s) of 
  
(c)Perform the statistical test.
 (d)  Draw final conclusions.

The Schizophrenia Scale on a Widely Used Personality Scale Is