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In STATISTICS .. what is the Typical Error ?
what does the Typical Error means ? what is it for ?
Typical Error = Sqroot(Sample variance)/Sqroot(Nsample)
what does the Typical Error Represents. ?
3 Answers
- cidyahLv 71 decade agoFavorite Answer
'Typical error' is also known as standard error of the mean.
Its uses are mentioned in the source.
It is the standard deviation of a set of means ( i.e., each value is a mean and we compute their standard deviation).
- 1 decade ago
The values of the change score or difference score for each subject yield the typical error. Simply divide the standard deviation of the difference score by root2. For example, if the difference scores are 5, -2, 6, 0, and -3, the standard deviation of these scores is 4.1, so the typical error is 4.1/root2 = 2.9. This method for calculating the typical error follows from the fact that the variance of the difference score (s2diff) is equal to the sum of the variances representing the typical error (s) in each trial: s2diff = s2 + s2, so s = sdiff/root2.
