View the step-by-step solution to:

# Assume the SAT Mathematics Level 2 test scores are normally distributed with a mean of 500 and a standard deviation of 100. Show all work.

10. Assume the SAT Mathematics Level 2 test scores are normally distributed with a mean of 500 and a standard deviation of 100. Show all work. Just the answer, without supporting work, will receive no credit.

(a)        If a random sample of 64 test scores is selected, what is the standard deviation of the sample mean?

(b)        What is the probability that 64 randomly selected test scores will have a mean test score that is between 475 and 525?

(a) S tandard deviation of the sample mean( ﻿ σ ​ ​ x... View the full answer

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents