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If the standard deviation of a normally distributed population is 20.0 and we take a sample of size 4, then the standard error of the mean is

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3 votes

Solution: The standard error of the mean is given below:


(20)/(√(4))


10

Therefore the standard error of mean is 10

User Cacois
by
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4 votes

Answer:

10

Explanation:

Thinking process:

The standard error is given by this formula:
SE = (\sigma )/(√(n) )

where SE is the standard error


\sigma = the standard deviation

n = sample size or the number of items

Then the error is given by:


SE = (20)/(√(4) ) \\ = (20)/(2) \\ =10

Therefore, the standard error is 10

User Tmountjr
by
7.4k points

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