With a sample mean of 10,a population average of 15,and a standard error of the mean of 10,calculate the observed z value.
A)2.5
B)-0.5
C)0.5
D)2.0

Name: With a sample mean of 10,a population average of 15,and a standard error of the mean of 10,calculate the observed z value. A)2.5 B)-0.5 C)0.5 D)2.0
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Question

Quizplus · Accepted Answer

The observed z value can be calculated as:

z = (sample mean - population mean) / standard error of the mean

z = (10 - 15) / 10

z = -0.5

Therefore, the best choice is B.

With a Sample Mean of 10,a Population Average of 15,and