An English instructor gave a final exam and found a mean score of 69 points and a standard deviation of 5.8 points.Assume that a Normal model can be applied.Draw and label the Normal model for the exam scores.Then find the interval for the central 68% of the scores.
A) ; 57.4 to 80.6 points
B) ; 63.2 to 74.8 points
C) ; 63.2 to 74.8 points
D) ; 57.4 to 69 points
E) ; 69 to 80.6 points

Question

An English instructor gave a final exam and found a mean score of 69 points and a standard deviation of 5.8 points.Assume that a Normal model can be applied.Draw and label the Normal model for the exam scores.Then find the interval for the central 68% of the scores.
A) ; 57.4 to 80.6 points 
B) ; 63.2 to 74.8 points 
C) ; 63.2 to 74.8 points 
D) ; 57.4 to 69 points 
E) ; 69 to 80.6 points

Quizplus · Accepted Answer

The Answer of An English instructor gave a final exam and found a mean score of 69 points and a standard deviation of 5.8 points.Assume that a Normal model can be applied.Draw and label the Normal model for the exam scores.Then find the interval for the central 68% of the scores.
A) ; 57.4 to 80.6 points 
B) ; 63.2 to 74.8 points 
C) ; 63.2 to 74.8 points 
D) ; 57.4 to 69 points 
E) ; 69 to 80.6 points

An English Instructor Gave a Final Exam and Found a Mean