Two psychometricians (educators who are experts in the field of psychological test design) were asked to rank six designs for a new standardized college entrance exam. This problem uses Spearman's rank correlation coefficient to see if there is a (positive) relationship between the educators' rankings.
The null and alternate hypotheses are as follows: (There is no association between the rank pairs) (The correlation between the rank pairs is positive)
Describe why the test statistic is called the rank correlation coefficient.
________________________________________________________
Test Statistic: = ______________
Rejection region (for = 0.05):
Reject if ______________
Conclude: ______________
There ______________ sufficient evidence to indicate there is any significant positive correlation between the educators' rankings.
What does this result mean in the context of the problem?
________________________________________________________
What is the observed significance level for this test?
______________

Question

Two psychometricians (educators who are experts in the field of psychological test design) were asked to rank six designs for a new standardized college entrance exam.  This problem uses Spearman's rank correlation coefficient to see if there is a (positive) relationship between the educators' rankings.
The null and alternate hypotheses are as follows:  (There is no association between the rank pairs)  (The correlation between the rank pairs is positive)
Describe why the test statistic  is called the rank correlation coefficient.
________________________________________________________
Test Statistic:  = ______________
Rejection region (for  = 0.05):
Reject  if  > ______________
Conclude: ______________
There ______________ sufficient evidence to indicate there is any significant positive correlation between the educators' rankings.
What does this result mean in the context of the problem?
________________________________________________________
What is the observed significance level for this test?
______________

Quizplus · Accepted Answer

The Answer of Two psychometricians (educators who are experts in the field of psychological test design) were asked to rank six designs for a new standardized college entrance exam.  This problem uses Spearman's rank correlation coefficient to see if there is a (positive) relationship between the educators' rankings.
The null and alternate hypotheses are as follows:  (There is no association between the rank pairs)  (The correlation between the rank pairs is positive)
Describe why the test statistic  is called the rank correlation coefficient.
________________________________________________________
Test Statistic:  = ______________
Rejection region (for  = 0.05):
Reject  if  > ______________
Conclude: ______________
There ______________ sufficient evidence to indicate there is any significant positive correlation between the educators' rankings.
What does this result mean in the context of the problem?
________________________________________________________
What is the observed significance level for this test?
______________

Two Psychometricians (Educators Who Are Experts in the Field of Psychological