A chemical reaction was run using two levels each of temperature (A), reagent concentration (B), and pH (C). For each factor, the high level is denoted 1, and the low level is denoted -1. The reaction was run twice for each combination of levels, and the yield (in percent) was recorded. The results were as follows:
A: 1 1 1 1 1 1 1 1
B: 1 1 1 1 1 1 1 1
C: 1 1 1 1 1 1 1 1
Yields Mean Yield: 74.71 72.5 73.74 73.5 78.74 76.0 86.89 87.5 71.68 69.5 77.77 77.0 75.85 80.0 92.82 87.0