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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The Answer of 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

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

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