Two methods (A and B) are available for removing dangerous heavy metals from public water supplies. Eight
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Two methods (A and B) are available for removing dangerous heavy metals from public water supplies. Eight water samples collected from various parts of the United States were used to compare the two methods. Four were treated with Method A and four were treated with Method B. After the processes were completed, each sample was rated for purity on a scale of 1 to 100.
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Method A Method B 88.6 92.1 90.7 93.6 81.4 84.6 91.4 78.6
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Method A Sample 1 94 Sample 2 85 Sample 3 81 Sample 4 ...View the full answer
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