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OpenStudy (anonymous):
Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is the z-score of a size of 7.5?
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jimthompson5910 (jim_thompson5910):
use the formula z = (x-mu)/sigma
jimthompson5910 (jim_thompson5910):
x = raw score z = standard z score mu = mean sigma = standard deviation
jimthompson5910 (jim_thompson5910):
in this case, x = 7.5 z = unknown (for now) mu = 10 sigma = 1.5
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