need help solving this

6. A Randomized Complete Block Design was used to test the efficacy of three fungicides (QR, Tex, and Lucan) that were applied in two different ways. All 6 combinations of fungicide and application were applied 5 times, and the mean and sample variance of each of those combinations are summarized in the following table. 2 Application Const Inter QR yl1. = 0.1158 y12. = 0.1379 $11. = 0.000675 $12. = 0.003360 Tex y21. = 0.1485 y22. = 0.2120 $21. = 0.002190 $22. = 0.001072 Lucan y31. = 0.1876 y32. = 0.2719 $31. = 0.001414 $32. = 0.000699 (a) Complete an ANOVA table. (Hint: $11 = 4 Ek=1 (ylik - 911.)2.) (b) Is there is a statistically significant difference between the three fungicide types after we have controlled for application type? (you can use F2,26,0.95 = 3.37.) (c) Give a 95% confidence interval for the contrast that compares the performance of QR to the other two fungicides: MQR - (/Tex + /Lucan) /2. (use t26,0.975 = 2.06.) (d) What kind of graph could I use to check the assumption that the variance of the observations is