A sample of n = 4 scores has SS = 48.What is the estimated standard error for the sample mean?
A)1
B)2
C)4
D)16

Question

A sample of n = 4 scores has SS = 48.What is the estimated standard error for the sample mean?​
A)1​
B)​2
C)​4
D)​16

Quizplus · Accepted Answer

The estimated standard error for the sample mean ($SE_{\bar{x}}$) is calculated using the formula $SE_{\bar{x}} = \sqrt{\frac{SS}{n(n-1)}}$, where SS is the sum of squares and n is the sample size. Substituting the given values, $SE_{\bar{x}} = \sqrt{\frac{48}{4(4-1)}} = \sqrt{\frac{48}{12}} = \sqrt{4} = 2$.

A Sample of N = 4 Scores Has SS =