On a scale of 0 to 10, a college student rated her enjoyment of statistics as a 7. The average rating among college students is 5 and the average spread around that mean is 1.5. What is the z-score for this student’s raw score of 7?
On a scale of 0 to 10, a college student rated her enjoyment of statistics as a 7. The average rating among college students is 5 and the average spread around that mean is 1.5. What is the z-score for this student’s raw score of 7?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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- On a scale of 0 to 10, a college student rated her enjoyment of statistics as a 7. The average rating among college students is 5 and the average spread around that
mean is 1.5. What is the z-score for this student’s raw score of 7?
Please include the formula and calculations in your answer to this question. -
What percent of college students enjoy statistics more?
What percent of college students enjoy statistics less?
Explain how you solved these.
Expert Solution
Step 1
Let X be a random variable which follows normal distribution with parameters then the standard normal variable is defined as
The value is called z-score.
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