If the sample mean is 30,the population average is 10,and the standard error of the mean is 5,what is the observed z value?
A)6
B)-2.5
C)20
D)4

Name: If the sample mean is 30,the population average is 10,and the standard error of the mean is 5,what is the observed z value? A)6 B)-2.5 C)20 D)4
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The Answer of If the sample mean is 30,the population average is 10,and the standard error of the mean is 5,what is the observed z value?
A)6
B)-2.5
C)20
D)4

If the Sample Mean Is 30,the Population Average Is 10,and