Which Index is Representative of How the Stock Market is Really Performing?

In an earlier article in this series I discussed the use of sample data drawn from a larger population for the purposes of making decisions.  The data in the sample must be representative of the larger population in order for it to be useful in decision making.  Consider the stock market in general.   What is […] read more

Issues with Data Collection – the Flint MI Water Crisis

The city of Flint, Michigan changed its water source from the Detroit water system to the Flint River in April, 2014 in order to save money.  Residents soon began to complain about the water’s color, taste and odor, and to report rashes and concerns about bacteria.  The Flint city government proclaimed at that time that […] read more

On July 30th, 2016, posted in: Six Sigma by Tags: ,