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April 18, 2014

Homework Help: John jay college

Posted by Samantha on Sunday, July 22, 2012 at 5:59pm.

A random sample of n = 9 scores is obtained from a population with μ = 50 and σ = 9. If the sample mean is M = 59, what is the z-score corresponding to the sample mean?

z = 3.00
z = 1.00    
z = 9.00
cannot determine without additional information

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