Question:You find out that the average 10th grade math score, for
Section 6 of the local...
Question
You find out that the average 10th grade math score, for
Section 6 of the local...
You find out that the average 10th grade math score, for
Section 6 of the local high school, is 87 for the 25 students in
the class. The average test score for all 10th grade math students
across the state is 85 for 1,800 students. The standard deviation
for the state is 3.8.
Answer the following questions:
What z score do you calculate?
What is the area between the mean and the z score found in
Appendix A of the textbook?
What does this mean about the probability of this test score
difference occurring by chance? Is it less than 0.05?