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    Exam 10: Only the Lonely: The One Sample Z-Test
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    If Your Sample Mean Is 25, Your Population Average Is
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If Your Sample Mean Is 25, Your Population Average Is

Question 15

Question 15

Multiple Choice

If your sample mean is 25, your population average is 5, and your standard error of the mean is 10, what is your observed z value?


A) 5
B) 2.5
C) −2
D) 2

Correct Answer:

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