MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Solve the following. Show your complete solution
The incoming freshman students of a particular college are required to take a mathematics placement examination. As an experiment, 8 randomly selected students were given the exam and
then made to join a 4-hour refresher class. These students were given a re-test after the refresher class. Assuming the distribution of scores was approximately normal, construct a 90% confidence interval for the mean difference of the exam scores.
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