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The Data from an Independent-Measures Research Study Produce a Sample

Question 57

Multiple Choice

The data from an independent-measures research study produce a sample mean difference of 4 points and a pooled variance of 18.If there are n = 4 scores in each sample,what is the estimated standard error for the sample mean difference?


A) 3
B) 9
C) 12
D) The square root of 12

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