Modern business is more science than art. Increase never prescribed global business leaders of competition to deal with uncertainty by using scientific methods and decision makers are targeting. Forecasting and planning, organization and decision making. The main activities of the Director means a better future for the company. The only certainty about the future is in the "uncertainty". Although we can not eliminate uncertainty, it is possible to measure the uncertainty using statistics: Director may make informed decisions using statistical methods and statistical thinking. This requires the statistical power detection for managers.......