An independent measures research study compares three treatm

An independent measures research study compares three treatment conditions using a sample of n = 10 in each treatment. For this study, the three samples have SS₁ = 10, SS = 20, and SS₃ = 15. What value would be obtained for MS_error?

a. 45/30

b. 45/29

c. 45/27

d. 45/3

Solution

SStotal = 45

Hence MS error = 45/3