A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course.The results are given below.Construct a 95% confidence interval for the mean difference between the before and after scores if
(before-after)= 3.7 and
= 4.945
A)(1.2,5.7)
B)(0.2,7.2)
C)(0.8,6.6)
D)(1.0,6.4)
E)(-4.4,11.8)

Question

A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course.The results are given below.Construct a 95% confidence interval for the mean difference between the before and after scores if 
(before-after)= 3.7 and 
= 4.945 
A)(1.2,5.7) 
B)(0.2,7.2) 
C)(0.8,6.6) 
D)(1.0,6.4) 
E)(-4.4,11.8)

Quizplus · Accepted Answer

The Answer of A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course.The results are given below.Construct a 95% confidence interval for the mean difference between the before and after scores if 
(before-after)= 3.7 and 
= 4.945 
A)(1.2,5.7) 
B)(0.2,7.2) 
C)(0.8,6.6) 
D)(1.0,6.4) 
E)(-4.4,11.8)

A Test of Abstract Reasoning Is Given to a Random