Use the followinginformationtoanswerQuestion12toQuestion14:In acompletely randomized experimental design, 7 experimental units were used for each of the 4 levels of the factor (i.e., 4 treatments). Whether the average of atleast one of the three treatments(groups) signi cantly di er needs to be tested at = 0.05.

11.(2 points) State appropriate null and alternate hypothesis.

12.(6 points) Fill in the empty cells in the table.

Source ss df MS F

Treatment 13301

Error 27780