A large school district is considering implementing a program that, if successful, would improve the reading scores of its students by 10 points. The current reading scores for the district are normally distributed with a mean of 37 and a standard deviation of 12. The administrators decide to test the new program in one school of 340 students.
-What is the shape of the comparison distribution?
A)positively skewed
B)negatively skewed
C)approximately normal
D)cannot be determined from the information provided

Question

Quizplus · Accepted Answer

Since the population from which the sample is drawn is normally distributed, the sample mean will also be approximately normally distributed due to the Central Limit Theorem.

A Large School District Is Considering Implementing a Program That