A Sample of N = 25 Scores Has a Mean $\sqrt { 2 }$

question 56

Multiple Choice

A sample of n = 25 scores has a mean of M = 40 and a variance of s² = 100.What is the estimated standard error for the sample mean??

• A)4?
• B)?2
• C)? \(\sqrt { 2 }\)
• D)?1

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