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 mean of the comparison distribution?
A)12
B)27
C)37
D)47

Question

Quizplus · Accepted Answer

The mean of the comparison distribution is the same as the mean of the population from which the sample was drawn. In this case, the mean of the population is 37, so the mean of the comparison distribution is also 37.

A Large School District Is Considering Implementing a Program That