Use the following information to answer Question 21 to Question 23: In a completely randomized experimental design, 6 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) signicantly dier needs to be tested at α = 0.05. 20. (2 points) State appropriate null and alternate hypothesis. 21. (6 points) Fill in the empty cells in the table. Source SS df MS F Treatment 10301 Error 24000 22. (2 points) What is the critical value associated with test? 23. (2 points) What is the conclusion of the test? Explain
Ans 20)
the appropriate null and alternate hypothesis are
Ho: the average of each group are same
Ha the average of atleast one of the three treatments(groups) signicantly differ
21. (6 points) Fill in the empty cells in the table.
Source | SS | Df | MS | F |
Treatment | 10301 | 3 | 3433.667 | 2.861389 |
Error | 24000 | 20 | 1200 | |
Total | 34301 | 23 |
22. the critical value associated with test is 3.098
23. since 2.861 < 3.098 (critical value ) so we do not reject Ho and conclude that the average of each group are same
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