A sample of n= 4 scores has SS equals 48 what is the estimated standard error for the sample mean

To calculate the estimated standard error for the sample mean, you need to use the formula:

Standard Error (SE) = √(Sum of Squares / (n * (n - 1)))

In this case, you are given the sample size (n) as 4 and the sum of squares (SS) as 48.

Using the given values, substitute them into the formula to find the estimated standard error for the sample mean:

SE = √(48 / (4 * (4 - 1)))

Simplifying this equation further:

SE = √(48 / (4 * 3))
SE = √(48 / 12)
SE = √4

Thus, the estimated standard error for the sample mean is 2.

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