test the hypothesis at the .05 significance level that the treatment means are equal.

treatment 1: 9,7, 11, 9, 12, 11
treatment 2: 13, 20, 14, 13
treatment 3: 10, 9, 15, 14, 15

a. state null & alternate hypothesis
b. decision rule
c. SST, SSE, and SS total
d. ANOVA table
e. state your decision

This is a one way anova.
I found this via google search One Way ANOVA

I threw this int JMP and I have...

model DF=2(that's right for sure) Model ss=65.7, Mss for model is 65.7/2
error DF=12 (that's right too) SSE=84.033333 MSE=7.0028

F(2,12)=4.691.
p-value =P(F(2,12)>4.691)=.0312

Hopefully I loaded this in correctly.
What I did, was use3 variables for the x's, 0 for off and 1 for on.
So my design matrix had 0's and 1's.