Question 5 of 20 : Select the best answer for the question. 5. Given the significance level 0.05, the F-value for the degrees of freedom, df = (3,7) is O A. 8.89. O B. 4.12. O C. 6.16. O D. 4.35. Question 4 of 20 : Select the best answer for the question. 4. Assume an experiment using randomized block design has four treatments and nine blocks, for a total of4 x 9 = 36 observations. Assuming the Total Sum of Squares for the responses is SS(Total) = 500 and a = .05, test the null hypothesis that the treatment means are equal when the Sum of Squares for Treatments (SST) is 40% of SS(Total) and the Sum of Squares for Blocks (SSB) is 40% of SS(Total). O A.F=22.00 O B.F= 12.88 0 C. F: 16.00 0 D. F: 18.00