SOLUTION: A sample of n=20 has a mean of m=40. If the standard deviation us s=5, would a score of x=55 be an extreme value?

Question 827230: A sample of n=20 has a mean of m=40. If the standard deviation us s=5, would a score of x=55 be an extreme value?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A sample of n=20 has a mean of m=40. If the standard deviation us s=5, would a score of x=55 be an extreme value?
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z(55) = (55-40)/5 = 3
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Ans: Yes, because the value is 3 standard deviations above the mean
The sample size does not matter because you are not measuring sample
means.
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Cheers,
Stan H.
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