Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level.
Treatment 1 Treatment 2 Treatment 3
9 13 10
7 20 9
11 14 15
9 13 14
12 - 15
10
a. Determine the null hypothesis and the alternate hypothesis.
b. Determine the decision rule?
c. Calculate SST, SSE, and SS totals.
d. Calculate an ANOVA table.
e. Describe your decision regarding the null hypothesis.