The table below shows the weights of 9 subjects,in kg,before and after they followed a particular diet for two months.
Construct a 95% confidence interval for the mean difference of the "before" minus "after" weights if if
(before-after)= 4.4333 and
= 4.2146
A)(2.8,7.0)
B)(-7.0,6.8)
C)(2.4,7.4)
D)(1.2,7.7)
E)(1.5,6.7)

Question

The table below shows the weights of 9 subjects,in kg,before and after they followed a particular diet for two months. 
Construct a 95% confidence interval for the mean difference of the "before" minus "after" weights if if 
(before-after)= 4.4333 and 
= 4.2146
A)(2.8,7.0) 
B)(-7.0,6.8) 
C)(2.4,7.4) 
D)(1.2,7.7) 
E)(1.5,6.7)

Quizplus · Accepted Answer

The Answer of The table below shows the weights of 9 subjects,in kg,before and after they followed a particular diet for two months. 
Construct a 95% confidence interval for the mean difference of the "before" minus "after" weights if if 
(before-after)= 4.4333 and 
= 4.2146
A)(2.8,7.0) 
B)(-7.0,6.8) 
C)(2.4,7.4) 
D)(1.2,7.7) 
E)(1.5,6.7)

The Table Below Shows the Weights of 9 Subjects,in Kg,before