Consider the methanol oxidation data in Table B.20. The chemist believes that ratio of inlet oxygen to the inlet methanol controls the conversion process. Perform a through analysis of these data. Do the data support the chemist's belief?

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1 X2 X3 X4 Xs y 0 454 8.8 3.90 1.30 1.1 474 8.2 3.68 1.16 4.2 524 7.0 2.78 1.25 94.2 503 7.4 2.27 1.57 20.7 493 7.6 2.40 1.55 15.7 493 7.6 1.28 2.71 15.9 493 7.5 5.68 0.54 14.7 493 7.6 4.65 0.74 10.8 493 7.4 3.30 1.01 9.6 493 7.4 2.52 1.12 12.7 493 7.5 2.44 0.86 7.1 493 7.5 2.47 0.45 9.0 530 6.7 1.97 1.74 96.0 522 6.9 2.03 0.94 78.4 522 6.9 2.05 0.93 78.3 503 7.3 2.16 0.94 71.4 453 8.7 2.76 0.90 0.5 483 7.7 2.42 0.91 3.1