If the sample mean is 100,the population average is 90,and the standard error of the mean is 10,what is the observed z value?
A)0
B)-0.10
C)1.0
D)-1.0

Name: If the sample mean is 100,the population average is 90,and the standard error of the mean is 10,what is the observed z value? A)0 B)-0.10 C)1.0 D)-1.0
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Quizplus · Accepted Answer

The formula to calculate the z-value is (sample mean - population mean) / standard error of the mean. Therefore, in this case, the z-value would be (100 - 90) / 10 = 1.0.

If the Sample Mean Is 100,the Population Average Is 90,and