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(iii) Jan achieved a score of 70 on a class test for which the mean score and the standard deviation were 49 and 12 respectively. One week later, Jan was absent for a second class test for which the mean score and the standard deviation were 55 and 8 respectively. (a) Calculate Jan's z-score on the first test. (b) Use Jan's z-score on the first test to estimate a score on the second test for Jan which would be equivalent to his performance on the first test, relative to the rest of the class.

(iii) Jan achieved a score of 70 on a class test for which the mean score and the standard deviation were 49 and 12 respectively. One week later, Jan was absent for a second class test for which the mean score and the standard deviation were 55 and 8 respectively. (a) Calculate Jan's z-score on the first test. (b) Use Jan's z-score on the first test to estimate a score on the second test for Jan which would be equivalent to his performance on the first test, relative to the rest of the class.

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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(iii) Jan achieved a score of 70 on a class test for which the mean score and the standard deviation were 49 and 12 respectively. One week later, Jan was absent for a second class test for which the mean score and the standard deviation were 55 and 8 respectively. (a) Calculate Jan's z-score on the first test. (b) Use Jan's z-score on the first test to estimate a score on the second test for Jan which would be equivalent to his performance on the first test, relative to the rest of the class.
Transcribed Image Text:(iii) Jan achieved a score of 70 on a class test for which the mean score and the standard deviation were 49 and 12 respectively. One week later, Jan was absent for a second class test for which the mean score and the standard deviation were 55 and 8 respectively. (a) Calculate Jan's z-score on the first test. (b) Use Jan's z-score on the first test to estimate a score on the second test for Jan which would be equivalent to his performance on the first test, relative to the rest of the class.
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