The standard deviation for the population is 10.
For given question,
We have been given a sample of size n = 25 scores is determined to have a standard error of 2 points.
We know that, the Standard deviation is the parameter that measures how the number spread.
It can be determined as standard error multiplied by the square root of the population.
It can be written as
σ = SE x √n
where σ is standard deviation,
SE is standard error and
n is the number of populations.
From the question above, we know that :
n = 25
SE = 2
By using the standard deviation formula, we get
⇒ σ = SE x √n
⇒ σ = 2 x √25
⇒ σ = 2 x 5
⇒ σ = 10
Hence, the standard deviation for the population is 10.
Learn more about the n standard deviation here:
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