Four different fuels are being evaluated based on the emission rate. For this purpose four IC engines have been used in the study. The experimenter has used a completely randomized block design and obtained data are given in Table 3.27. Analyse the data and draw appropriate conclusions. Use = 0.05. TABLE 3.27 Data for Problem 3.7 Engines (Block) Type of fuel 1 2 3 4 F 0.25 0.21 0.15 0.52 F2 0.45 0.36 0.81 0.66 F3 0.50 0.76 0.54 0.61 FA 0.28 0.14 0.11 0.30