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(a) above 30, (b) above 20, (c) above 18,

(a) above 30, (b) above 20, (c) above 18,

MATLAB: An Introduction with Applications
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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parts a - c

An education researcher has been studying test anxiety using a particular measure, which she administers to students prior to midterm exams. On this measure, she has found that the distribution follows a normal curve. The measure has a mean of 17 and a standard deviation of 5. Using the accompanying normal curve table, what percentage of students have scores (a) above 30, (b) above 20, (c) above 18, (d) below 18, and (e) below 4? Click here to view page 1 of the normal curve table. Click here to view page 2 of the normal curve table. Click here to view page 3 of the normal curve table. Click here to view page 4 of the normal curve table.
Transcribed Image Text:An education researcher has been studying test anxiety using a particular measure, which she administers to students prior to midterm exams. On this measure, she has found that the distribution follows a normal curve. The measure has a mean of 17 and a standard deviation of 5. Using the accompanying normal curve table, what percentage of students have scores (a) above 30, (b) above 20, (c) above 18, (d) below 18, and (e) below 4? Click here to view page 1 of the normal curve table. Click here to view page 2 of the normal curve table. Click here to view page 3 of the normal curve table. Click here to view page 4 of the normal curve table.
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given datanormal distributionμ=17σ=5

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