You are evaluating two contractors for cleaning up Superfund sites. You oversee the cleanup of mining...

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  1. You are evaluating two contractors for cleaning up Superfundsites. You oversee the cleanup of mining Superfund sites andfactory-based Superfund sites. You are interested in selecting thecontractor that has most often done the cleanup within the allottedtime frame.

Contractor A did 48 mining Superfundsites, finishing 12 of them on time. They also did 572factory-based sites, finishing 183 on time.

Contractor B has done 412 miningSuperfund sites, finishing 105 on time. They also did 140factory-based sites with 45 of them being finished on time.

  1. What is the overall ratio of completing the projects on timefor each contractor? Based on this alone, which contractor wouldyou choose?
  2. If you had to choose one for a mining site, which one would youchoose? Justify.
  3. If you had to choose one for a factory site, which one wouldyou choose? Justify.
  4. If you had to choose one to handle both sites, which one wouldyou choose? If this contradicts any of your other choices, be sureto comment on resolving the contradiction.

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