
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Given µ= 200 and standard deviation σ = 24. Sample of n = 9 individuals are measured and the sample mean x is determined. What is the z-score for a sample mean x = 180?
Select one:
a. 2.50
b. –2.50
c. −0.83
d. –3.75
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