2. the water quality is "good" if the count of e coli is 0; otherwise, the water quality is still bad. calculate the proportion of wells with "good" water to wells whose water is not good. from this measure does it appear that the quality of water improved? explain and use the proportions that you calculated. (in g11 and h11 calculate the percent clean for before and after.)
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2. the water quality is "good" if the count of e coli is 0; otherwise, the water quality is still b...
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