Hypothesis Testing
Given the following sample information, test the hypothesis
that the treatment means are equal at the .05 significance level.
Treatment 1
8, 11, 10,
Treatment 2
3, 2, 1, 3, 2,
Treatment 3
3, 4, 5, 4,
a. state the null hypothesis and the alternative hypothesis
b. what is the decision rule?
c. Compute SST, SSE and SS total
d. Complete an ANOVA table.
e. State your decision regarding the null hypothesis.
f. If Ho is rejected, can we conclude that treatment 1 and
treatment 2 differ? Use the 95 percent level of confidence.





