An exam is administered to 20 high school students, chosen randomly from within a large school district. Suppose that, if everyone in the school district were to take the exam, scores would follow a normal distribution, with mean .69 and standard deviation .18. What is the probaiblity that the average score for these 20 students is more than 5 percentage points away from the population average (i.e. less than .64 or greater than .74)?
An exam is administered to 20 high school students, chosen randomly from within a large school district. Suppose that, if everyone in the school district were to take the exam, scores would follow a normal distribution, with mean .69 and standard deviation .18. What is the probaiblity that the average score for these 20 students is more than 5 percentage points away from the population average (i.e. less than .64 or greater than .74)?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
An exam is administered to 20 high school students, chosen randomly from
within a large school district. Suppose that, if everyone in the school district were to
take the exam, scores would follow a
deviation .18. What is the probaiblity that the average score for these 20 students is
more than 5 percentage points away from the population average (i.e. less than .64
or greater than .74)?
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