If the distribution of scores on a math placement test is approximately normal with a mean of 65 and a standard deviation 8. Find the z-score for a score of 76 and interpret its meaning. 1.05; a score of 76 on the math placement exam is 1.05 standard deviations above the mean. -1.38; a score of 76 on the math placement exam is 1.38 standard deviations below the mean. 1.38; a score of 76 on the math placement exam is 1.38 standard deviations above the mean. 0.75; a score of 76 on the math placement exam is 0.75 standard deviations above the mean. -1.05; a score of 76 on the math placement exam is 1.05 standard deviations below the mean.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

14

If the distribution of scores on a math placement test is approximately normal with a mean of 65 and a standard deviation 8. Find the z-score for a score of 76 and interpret its
meaning.
1.05; a score of 76 on the math placement exam is 1.05 standard deviations above the mean.
-1.38; a score of 76 on the math placement exam is 1.38 standard deviations below the mean.
1.38; a score of 76 on the math placement exam is 1.38 standard deviations above the mean.
0.75; a score of 76 on the math placement exam is 0.75 standard deviations above the mean.
-1.05; a score of 76 on the math placement exam is 1.05 standard deviations below the mean.
Transcribed Image Text:If the distribution of scores on a math placement test is approximately normal with a mean of 65 and a standard deviation 8. Find the z-score for a score of 76 and interpret its meaning. 1.05; a score of 76 on the math placement exam is 1.05 standard deviations above the mean. -1.38; a score of 76 on the math placement exam is 1.38 standard deviations below the mean. 1.38; a score of 76 on the math placement exam is 1.38 standard deviations above the mean. 0.75; a score of 76 on the math placement exam is 0.75 standard deviations above the mean. -1.05; a score of 76 on the math placement exam is 1.05 standard deviations below the mean.
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