
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Your company wants to improve sales. Past sales data indicate that the
average sale was $100 per transaction. After training, recent sales data taken from a sample of 25
workers, indicates an average sale of $130, with a standard deviation of $15.
Did the training work? Test your hypothesis at a 5% (alpha symbol) level.
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