Three compounds (C1, C2, C3) useful for the drug production could be extracted from three plants (P1, P2, P3), which grow in different parts of the world. Four technicians were chosen at random from each of three different laboratories in those parts of the world to determine the percentages of the compounds in each of those plants. The responses of the investigations are presented below as follows:

Determine whether any of the plants yields more or less of the chemicals.
Is there any significant difference in the skills of the technicians?

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Plant Compound P P2 P3 1 2 3 4 5 6 7 8 9 10 11 12 568 8.7 9.3 8.5 7.8 10.2 9.8 10.6 9.9 11.2 9.7 10.5 9.4 6.3 7.1 5.8 6.1 8.1 8.4 7.3 6.9 7.5 8.5 6.8 7.7 Cg 3.9 5.3 4.7 4.9 4.2 4.8 4.0 4.7 6.0 4.1 4.3 5.1