Question

In: Statistics and Probability

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

  1. You are evaluating two contractors for cleaning up Superfund sites. You oversee the cleanup of mining Superfund sites and factory-based Superfund sites. You are interested in selecting the contractor that has most often done the cleanup within the allotted time frame.

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

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

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

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Expert Solution

orchestra answered 1 year ago
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