Wayward and capricious, the wind has long been used as a metaphor for constant change. Wind turbine engineers deal with that changeability every day, along with a host of other challenging factors.

Story update 4/24/2014: We bumped up the cost of accreditation based on comments that the original article was on the low side. We also added references to ILAC as well as additional accreditation bodies that operate in the United States (ACLASS, NVLAP, L.A.B.)

My main objective is to encourage greater use of statistical techniques in the service sector and present new ways to implement them.