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A sample of n = 9 scores has a variance of s2 = 36. what is the estimated standard error for the sample mean? 1 2 4 16

A sample of n = 9 scores has a variance of s2 = 36. what is the estimated standard error for the sample mean? 1 2 4 16
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A sample of n = 9 scores has a variance of s2 = 36. what is the estimated standard error for the sample mean? 1 2 4 16

User Brian Wigginton
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1 Answer

3 votes
Given:
σ² = 36, the variance
n = 9, the sample size.

The standard deviation is
σ = 6

By definition, the standard error is
σ/√n = 6/3 = 2

Answer: 2

User Innom
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