MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Use the standard deviation values of the two samples to find the standard deviation of the sample mean differences.
Sample Standard deviation 
Red box 3.868
Blue box 2.933
Then complete each statement
By the way
60, 45 and 0.72 are wrong
Options for Red box is 45 48 63 (60 is wrong)
Options for blue box is 48 60 63 (45 is wrong)
Options for sample mean differences 0.63 0.69 0.43 (0.72 is wrong)
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