Fit a simple linear regression model to the oxygen purity data in Table 11-1.

100 98 96 94 Purity (y) 92 06 88 86 0.85 0.95 1.05 1.15 1.25 1.35 1.45 1.55 Hydrocarbon level (x) Figure 11-1 Scatter diagram of oxygen purity versus hydrocarbon level from Table 11-1.Table 11-1 Oxygen and Hydrocarbon Levels Observation Hydrocarbon Level Purity Number x (%) y (%) 0.99 90.01 1.02 89.05 1.15 91.43 1.29 93.74 1.46 96.73 1.36 94.45 SEODOJO UAWNE 0.87 87.59 1.23 91.77 1.55 99.42 1.40 93.65 1.19 93.54 1.15 92.52 13 0.98 90.56 14 1.01 89.54 1.11 89.85 1.20 90.39 1.26 93.25 18 1.32 93.41 1.43 94.98 20 0.95 87.33