Name: Brewery Wastewater


Abstract: The brewery staff suspected that some labs were using improper techniques for testing the level of certain elements in the water.  Poor testing could cause inconsistent results and false positives for dangerous amounts of these elements in the water.  To check, two labs were sent similar samples of water to analyze and report their findings.


Variables (column):

  1. Metal
  2. Amount in Lab 1 (micrograms/liter)
  3. Amount in Lab 2 (micrograms/liter)


Possible Uses: Matched pairs


References: Levine, David, Patricia Ramsey, and Robert Smidt.  Applied Statistics for Engineers and Scientists.  Upper Saddle River, NJ: Prentice Hall 2001.