Before writing the Final Report, there's an additional piece of the study to consider.

 Although we did not present these data here, the authors of this study also gave the
 parents who worked at the lead factory a questionnaire covering the parent's hygiene at
 work:

        Did the parents shower, change clothes, change shoes, and/or shampoo
        their hair before leaving work?  How frequently?

        Was the parents' exposure to elad  best classified as low, medium, or
        high, while on the job?

 There was, in fact,  a strong relationship:
Parents whose children had the highest levels of lead in their blood had the highest
 exposure at work and also did not follow the proper hygiene before leaving the factory.
 

Final Report

 A law-maker of a particular state legislature is proposing a law to require mandatory
 hygiene procedures in factories in which workers are exposed to lead.  His reason for
 doing so is a newspaper article he read about the study you have just examined.  Here are
 examples of speeches from the floor of the legislature about this law.

   Speech #1
   It doesn't take a genius to see what's happening here.  I can almost see daddy getting
   home from the night shift and shedding lead dust into his kids' frosted flakes over
   breakfast.  Isn't it obvious that the corporations running these hazardous facilities are
   too greedy to take the time and trouble to make sure employees understand and follow
   simple rules of hygeine?  We need strict regulation.  We need to protect our children!

   Speech #2
   Now let me see if I have this straight.  We have a study based on only one plant and
   only 33 kids -- and very few of these kids showed any signs of being in any danger--
   and maybe that danger is only in the minds of a few self-appointed eco-freak
   "experts."  On this basis of this you want me to vote for a bill that will place a burden
   that will run into the millions of dollars on the industries that make this great state so
   productive?  This will make our industries less competitive and drive jobs into other
   states!
 

 Your job is to prepare a non-partisan report for the legislative analysts that will put the
 results of the study into the proper perspective.  The legislature would like to know if the
 study is basically sound, whether children are really at risk, and if so, what measures should
 be taken to prevent it.  But be aware that proposed policies have costs associated with them,
 and so the legislature must be sure that their proposals are supported by this study.