A school principal suspected that a teacher's attitude toward a first-grader depended on his original judgment of the child's ability. The principal also suspected that much of that judgment was based on the first-grader's IQ score, which was usually known to the teacher. After three weeks of teaching, a teacher was asked to rank the nine children in his class from 1 (highest) to 9 (lowest) as to his opinion of their ability. Do the data provide sufficient evidence to indicate a positive correlation between the teacher's ranks and the ranks of the IQs? Use = .05.
Test Statistic: = ______________
Reject Region:
Reject if | | ______________
Conclude:
______________
A positive correlation ______________ between the teacher's ranks of the IQs.

Question

A school principal suspected that a teacher's attitude toward a first-grader depended on his original judgment of the child's ability. The principal also suspected that much of that judgment was based on the first-grader's IQ score, which was usually known to the teacher. After three weeks of teaching, a teacher was asked to rank the nine children in his class from 1 (highest) to 9 (lowest) as to his opinion of their ability.  Do the data provide sufficient evidence to indicate a positive correlation between the teacher's ranks and the ranks of the IQs? Use  = .05.
Test Statistic:  = ______________
Reject Region:
Reject  if |  | > ______________
Conclude:
______________
A positive correlation ______________ between the teacher's ranks of the IQs.

Quizplus · Accepted Answer

The Answer is .8333; .60; Reject the null hypothesis; exists

A School Principal Suspected That a Teacher's Attitude Toward a First-Grader