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Part 2. 13. An agricultural experiment considered the effects of KO (potash) on the breaking strength of cotton fibers. Four KO levels were used (36, 54, 72, 108 lbs/acre). A sample of cotton was taken from each plot, and a strength measurement was taken. The experiment was arranged in 3 blocks of 4 plots each. The randomized complete block (RCB) model is considered: Yo = N+ Tit Bite, Eij ~ iidN(0, 52), (1) for i = 1, 2, 3, 4, and j = 1, 2, 3. The summary statistics are Treatment Means Y1. = 7.85 Y2. = 8.39 Y3. = 7.74 YA. = 7.51 Block Means Y 1 = 7.67 Y.2 = 7.86 Y.3 = 8.09 Grand Mean Y.. = 7.87 A partial ANOVA table is given below: Source DF SS Mean Square F Stat Prob > F K20 Ibs/acre 1.232 Blocks 0.341 Error 6 0.049 C Total 11 (a) (5 points) Fill in the blanks in the ANOVA table (for the p-value, please provide the range). (b) (2 points) What hypotheses are being tested by the "K20 Ibs/acre" row? Based on the range of the p-value in Part (a), what is your conclusion? Consider the 5% significance level. (c) (3 points) Derive the 90% Tukey confidence interval for t2 - 71