The data from an independentmeasures research study produce

The data from an independent-measures research study produce a sample mean difference of 16 points and an estimated standard error of 64 points. If there are n = 10 scores in each sample, then what is the estimated standard error for the sample mean difference?

Solution

Answer

Standard error = (mean difference) / [sqrt(pooled variance)sqrt(1/8+1/8)]
SE = 4 / sqrt(16) sqrt(2/8)
= 4/(4*0.5)
=2