Six Sigma can estimate custom jobs

Statistical methods help manufacturer eliminate cost variance and secure future contracts 

By Brady Beckham and Gary Stiles

Improving cost accuracy may seem like an exercise with only two possible outcomes: uneventfully meet expectations of success or draw criticism for any other result. This was the scenario at a manufacturer of custom-engineered, large-scale heat exchangers. The company had comfortable levels of demand, revenue and capacity, but slight errors in quoting kept costing the company sales.


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