The following data are the percents of foreign additives measured by 5 analysts for 3 similar brands of strawberry jam, A, B, and C. Perform the analysis of variance and test the hypothesis, at the 0.05 level of significance, that the percent of foreign additives is the same for all 3 brands of jam. Which brand of jam appears to have feweradditives?

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Analyst 1 Analyst. 2 Analyst 3 B: 2.8 A: 2.7 Analyst 4 Analyst 5 A: 1.7 B: 2.7 C: 7.5 A: 2.0 B: 4.8 B: 1,9 C: 2.6 A: 3.8 B: 5.2